87770571610 has 8 divisors (see below), whose sum is σ = 157987028916. Its totient is φ = 35108228640.

The previous prime is 87770571589. The next prime is 87770571641. The reversal of 87770571610 is 1617507778.

It can be written as a sum of positive squares in 2 ways, for example, as 83895384609 + 3875187001 = 289647^2 + 62251^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×87770571610² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4388528571 + ... + 4388528590.

Almost surely, 2^87770571610 is an apocalyptic number.

87770571610 is a deficient number, since it is larger than the sum of its proper divisors (70216457306).

87770571610 is a wasteful number, since it uses less digits than its factorization.

87770571610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8777057168.

The product of its (nonzero) digits is 576240, while the sum is 49.

The spelling of 87770571610 in words is "eighty-seven billion, seven hundred seventy million, five hundred seventy-one thousand, six hundred ten".