7966042923887 has 16 divisors (see below), whose sum is σ = 8230511520000. Its totient is φ = 7702045132800.

The previous prime is 7966042923857. The next prime is 7966042923899. The reversal of 7966042923887 is 7883292406697.

It is not a de Polignac number, because 7966042923887 - 2²⁶ = 7965975815023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7966042923887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7966042923847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303466739 + ... + 303492987.

It is an arithmetic number, because the mean of its divisors is an integer number (514406970000).

Almost surely, 2^{7966042923887} is an apocalyptic number.

7966042923887 is a deficient number, since it is larger than the sum of its proper divisors (264468596113).

7966042923887 is a wasteful number, since it uses less digits than its factorization.

7966042923887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34834.

The product of its (nonzero) digits is 438939648, while the sum is 71.

The spelling of 7966042923887 in words is "seven trillion, nine hundred sixty-six billion, forty-two million, nine hundred twenty-three thousand, eight hundred eighty-seven".