80956120887 has 24 divisors (see below), whose sum is σ = 119361166704. Its totient is φ = 52855455744.

The previous prime is 80956120871. The next prime is 80956120943. The reversal of 80956120887 is 78802165908.

It is not a de Polignac number, because 80956120887 - 2⁴ = 80956120871 is a prime.

It is a super-3 number, since 3×80956120887³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80956120867) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105783 + ... + 416055.

It is an arithmetic number, because the mean of its divisors is an integer number (4973381946).

Almost surely, 2^80956120887 is an apocalyptic number.

80956120887 is a deficient number, since it is larger than the sum of its proper divisors (38405045817).

80956120887 is a wasteful number, since it uses less digits than its factorization.

80956120887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310879 (or 310876 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 54.

The spelling of 80956120887 in words is "eighty billion, nine hundred fifty-six million, one hundred twenty thousand, eight hundred eighty-seven".