87847771076 has 12 divisors (see below), whose sum is σ = 165559260972. Its totient is φ = 40545125088.

The previous prime is 87847771073. The next prime is 87847771127. The reversal of 87847771076 is 67017774878.

It can be written as a sum of positive squares in 2 ways, for example, as 10048057600 + 77799713476 = 100240^2 + 278926^2 .

It is not an unprimeable number, because it can be changed into a prime (87847771073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 844690055 + ... + 844690158.

It is an arithmetic number, because the mean of its divisors is an integer number (13796605081).

Almost surely, 2^87847771076 is an apocalyptic number.

It is an amenable number.

87847771076 is a deficient number, since it is larger than the sum of its proper divisors (77711489896).

87847771076 is a wasteful number, since it uses less digits than its factorization.

87847771076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1689380230 (or 1689380228 counting only the distinct ones).

The product of its (nonzero) digits is 25815552, while the sum is 62.

The spelling of 87847771076 in words is "eighty-seven billion, eight hundred forty-seven million, seven hundred seventy-one thousand, seventy-six".