86776198084 has 9 divisors (see below), whose sum is σ = 151859377677. Its totient is φ = 43387804464.

The previous prime is 86776198079. The next prime is 86776198123. The reversal of 86776198084 is 48089167768.

The square root of 86776198084 is 294578.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 50096287684 + 36679910400 = 223822^2 + 191520^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 515512 + ... + 662800.

Almost surely, 2^86776198084 is an apocalyptic number.

86776198084 is the 294578-th square number.

It is an amenable number.

86776198084 is a deficient number, since it is larger than the sum of its proper divisors (65083179593).

86776198084 is an frugal number, since it uses more digits than its factorization.

86776198084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294582 (or 147291 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 64.

Multiplying 86776198084 by its sum of digits (64), we get a square (5553676677376 = 2356624²).

The spelling of 86776198084 in words is "eighty-six billion, seven hundred seventy-six million, one hundred ninety-eight thousand, eighty-four".