87978079304 has 8 divisors (see below), whose sum is σ = 164958898710. Its totient is φ = 43989039648.

The previous prime is 87978079283. The next prime is 87978079361. The reversal of 87978079304 is 40397087978.

It can be written as a sum of positive squares in only one way, i.e., 56401500100 + 31576579204 = 237490^2 + 177698^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5498629949 + ... + 5498629964.

Almost surely, 2^87978079304 is an apocalyptic number.

It is an amenable number.

87978079304 is a deficient number, since it is larger than the sum of its proper divisors (76980819406).

87978079304 is a wasteful number, since it uses less digits than its factorization.

87978079304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10997259919 (or 10997259915 counting only the distinct ones).

The product of its (nonzero) digits is 21337344, while the sum is 62.

The spelling of 87978079304 in words is "eighty-seven billion, nine hundred seventy-eight million, seventy-nine thousand, three hundred four".