391382613120 has 64 divisors (see below), whose sum is σ = 1247532085440. Its totient is φ = 104368696320.

The previous prime is 391382613079. The next prime is 391382613121. The reversal of 391382613120 is 21316283193.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×391382613120² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (391382613121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101920636 + ... + 101924475.

It is an arithmetic number, because the mean of its divisors is an integer number (19492688835).

Almost surely, 2^391382613120 is an apocalyptic number.

391382613120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

391382613120 is an abundant number, since it is smaller than the sum of its proper divisors (856149472320).

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

391382613120 is a wasteful number, since it uses less digits than its factorization.

391382613120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203845133 (or 203845121 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The spelling of 391382613120 in words is "three hundred ninety-one billion, three hundred eighty-two million, six hundred thirteen thousand, one hundred twenty".