1683670185372 has 72 divisors (see below), whose sum is σ = 4573813837824. Its totient is φ = 480643160928.

The previous prime is 1683670185367. The next prime is 1683670185391. The reversal of 1683670185372 is 2735810763861.

It is a super-2 number, since 2×1683670185372² (a number of 25 digits) contains 22 as substring.

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, 508188 + ... + 1904099.

It is an arithmetic number, because the mean of its divisors is an integer number (63525192192).

Almost surely, 2^{1683670185372} is an apocalyptic number.

1683670185372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1683670185372 is an abundant number, since it is smaller than the sum of its proper divisors (2890143652452).

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

1683670185372 is a wasteful number, since it uses less digits than its factorization.

1683670185372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2413495 (or 2413486 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 57.

The spelling of 1683670185372 in words is "one trillion, six hundred eighty-three billion, six hundred seventy million, one hundred eighty-five thousand, three hundred seventy-two".