87769315816 has 48 divisors (see below), whose sum is σ = 203657479200. Its totient is φ = 34721923392.

The previous prime is 87769315813. The next prime is 87769315819. The reversal of 87769315816 is 61851396778.

It is an interprime number because it is at equal distance from previous prime (87769315813) and next prime (87769315819).

It is not an unprimeable number, because it can be changed into a prime (87769315813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4627546 + ... + 4646473.

It is an arithmetic number, because the mean of its divisors is an integer number (4242864150).

Almost surely, 2^87769315816 is an apocalyptic number.

It is an amenable number.

87769315816 is an abundant number, since it is smaller than the sum of its proper divisors (115888163384).

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

87769315816 is a wasteful number, since it uses less digits than its factorization.

87769315816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9274058 (or 9274041 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 61.

The spelling of 87769315816 in words is "eighty-seven billion, seven hundred sixty-nine million, three hundred fifteen thousand, eight hundred sixteen".