1673352051840 has 512 divisors, whose sum is σ = 6779951424000. Its totient is φ = 382093148160.

The previous prime is 1673352051817. The next prime is 1673352051859. The reversal of 1673352051840 is 481502533761.

It is a happy number.

1673352051840 is a `hidden beast` number, since 1 + 6 + 7 + 33 + 520 + 51 + 8 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 129299770 + ... + 129312710.

It is an arithmetic number, because the mean of its divisors is an integer number (13242092625).

Almost surely, 2^{1673352051840} is an apocalyptic number.

1673352051840 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 1673352051840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3389975712000).

1673352051840 is an abundant number, since it is smaller than the sum of its proper divisors (5106599372160).

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

1673352051840 is a wasteful number, since it uses less digits than its factorization.

1673352051840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14045 (or 14027 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 1673352051840 in words is "one trillion, six hundred seventy-three billion, three hundred fifty-two million, fifty-one thousand, eight hundred forty".