391935048152 has 32 divisors (see below), whose sum is σ = 741410046720. Its totient is φ = 194232469920.

The previous prime is 391935048137. The next prime is 391935048163. The reversal of 391935048152 is 251840539193.

It is a super-2 number, since 2×391935048152² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 391935048152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40877 + ... + 886307.

It is an arithmetic number, because the mean of its divisors is an integer number (23169063960).

Almost surely, 2^391935048152 is an apocalyptic number.

It is an amenable number.

391935048152 is a deficient number, since it is larger than the sum of its proper divisors (349474998568).

391935048152 is a wasteful number, since it uses less digits than its factorization.

391935048152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845951 (or 845947 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 50.

The spelling of 391935048152 in words is "three hundred ninety-one billion, nine hundred thirty-five million, forty-eight thousand, one hundred fifty-two".