7861911907936 has 24 divisors (see below), whose sum is σ = 15478205780520. Its totient is φ = 3930939011328.

The previous prime is 7861911907877. The next prime is 7861911907963. The reversal of 7861911907936 is 6397091191687.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10628995 + ... + 11344573.

It is an arithmetic number, because the mean of its divisors is an integer number (644925240855).

Almost surely, 2^{7861911907936} is an apocalyptic number.

It is an amenable number.

7861911907936 is a deficient number, since it is larger than the sum of its proper divisors (7616293872584).

7861911907936 is a wasteful number, since it uses less digits than its factorization.

7861911907936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058926 (or 1058918 counting only the distinct ones).

The product of its (nonzero) digits is 30862944, while the sum is 67.

The spelling of 7861911907936 in words is "seven trillion, eight hundred sixty-one billion, nine hundred eleven million, nine hundred seven thousand, nine hundred thirty-six".