391641284716 has 24 divisors (see below), whose sum is σ = 747809624016. Its totient is φ = 177987621120.

The previous prime is 391641284687. The next prime is 391641284729. The reversal of 391641284716 is 617482146193.

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, 523321 + ... + 1028176.

It is an arithmetic number, because the mean of its divisors is an integer number (31158734334).

Almost surely, 2^391641284716 is an apocalyptic number.

It is an amenable number.

391641284716 is a deficient number, since it is larger than the sum of its proper divisors (356168339300).

391641284716 is a wasteful number, since it uses less digits than its factorization.

391641284716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557249 (or 1557247 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 52.

The spelling of 391641284716 in words is "three hundred ninety-one billion, six hundred forty-one million, two hundred eighty-four thousand, seven hundred sixteen".