1897672351740 has 192 divisors, whose sum is σ = 5824034334720. Its totient is φ = 457863840000.

The previous prime is 1897672351739. The next prime is 1897672351741. The reversal of 1897672351740 is 471532767981.

It is an interprime number because it is at equal distance from previous prime (1897672351739) and next prime (1897672351741).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1897672351741) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 122811015 + ... + 122826465.

It is an arithmetic number, because the mean of its divisors is an integer number (30333512160).

It is a 1-persistent number, because it is pandigital, but 2⋅1897672351740 = 3795344703480 is not.

Almost surely, 2^{1897672351740} is an apocalyptic number.

1897672351740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1897672351740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2912017167360).

1897672351740 is an abundant number, since it is smaller than the sum of its proper divisors (3926361982980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1897672351740 is a wasteful number, since it uses less digits than its factorization.

1897672351740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16344 (or 16342 counting only the distinct ones).

The product of its (nonzero) digits is 17781120, while the sum is 60.

The spelling of 1897672351740 in words is "one trillion, eight hundred ninety-seven billion, six hundred seventy-two million, three hundred fifty-one thousand, seven hundred forty".