1870385545400 has 96 divisors (see below), whose sum is σ = 4409336489760. Its totient is φ = 737718128640.

The previous prime is 1870385545351. The next prime is 1870385545411. The reversal of 1870385545400 is 45455830781.

It is a super-2 number, since 2×1870385545400² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66897824 + ... + 66925776.

It is an arithmetic number, because the mean of its divisors is an integer number (45930588435).

Almost surely, 2^{1870385545400} is an apocalyptic number.

1870385545400 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 1870385545400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2204668244880).

1870385545400 is an abundant number, since it is smaller than the sum of its proper divisors (2538950944360).

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

1870385545400 is a wasteful number, since it uses less digits than its factorization.

1870385545400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32625 (or 32616 counting only the distinct ones).

The product of its (nonzero) digits is 2688000, while the sum is 50.

The spelling of 1870385545400 in words is "one trillion, eight hundred seventy billion, three hundred eighty-five million, five hundred forty-five thousand, four hundred".