88797779780 has 24 divisors (see below), whose sum is σ = 188125566552. Its totient is φ = 35204782592.

The previous prime is 88797779737. The next prime is 88797779831. The reversal of 88797779780 is 8797779788.

It can be written as a sum of positive squares in 4 ways, for example, as 6479284036 + 82318495744 = 80494^2 + 286912^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19643267 + ... + 19647786.

It is an arithmetic number, because the mean of its divisors is an integer number (7838565273).

Almost surely, 2^88797779780 is an apocalyptic number.

It is an amenable number.

88797779780 is an abundant number, since it is smaller than the sum of its proper divisors (99327786772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

88797779780 is a wasteful number, since it uses less digits than its factorization.

88797779780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39291175 (or 39291173 counting only the distinct ones).

The product of its (nonzero) digits is 697019904, while the sum is 77.

The spelling of 88797779780 in words is "eighty-eight billion, seven hundred ninety-seven million, seven hundred seventy-nine thousand, seven hundred eighty".