3872390400185 has 16 divisors (see below), whose sum is σ = 4772559427776. Its totient is φ = 3014121860928.

The previous prime is 3872390400167. The next prime is 3872390400187. The reversal of 3872390400185 is 5810040932783.

It is a cyclic number.

It is not a de Polignac number, because 3872390400185 - 2⁸ = 3872390399929 is a prime.

It is a super-2 number, since 2×3872390400185² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3872390400187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9902342 + ... + 10285968.

It is an arithmetic number, because the mean of its divisors is an integer number (298284964236).

Almost surely, 2^{3872390400185} is an apocalyptic number.

It is an amenable number.

3872390400185 is a deficient number, since it is larger than the sum of its proper divisors (900169027591).

3872390400185 is a wasteful number, since it uses less digits than its factorization.

3872390400185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438232.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 3872390400185 in words is "three trillion, eight hundred seventy-two billion, three hundred ninety million, four hundred thousand, one hundred eighty-five".