361831025640 has 256 divisors, whose sum is σ = 1253790720000. Its totient is φ = 81827159040.

The previous prime is 361831025579. The next prime is 361831025653. The reversal of 361831025640 is 46520138163.

It is a super-2 number, since 2×361831025640² (a number of 24 digits) contains 22 as substring.

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, 30249981 + ... + 30261939.

It is an arithmetic number, because the mean of its divisors is an integer number (4897620000).

Almost surely, 2^361831025640 is an apocalyptic number.

361831025640 is a gapful number since it is divisible by the number (30) 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 361831025640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (626895360000).

361831025640 is an abundant number, since it is smaller than the sum of its proper divisors (891959694360).

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

361831025640 is a wasteful number, since it uses less digits than its factorization.

361831025640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12360 (or 12356 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 361831025640 in words is "three hundred sixty-one billion, eight hundred thirty-one million, twenty-five thousand, six hundred forty".