76987609049488 has 20 divisors (see below), whose sum is σ = 157937815624140. Its totient is φ = 36229463081984.

The previous prime is 76987609049431. The next prime is 76987609049489. The reversal of 76987609049488 is 88494090678967.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25346311078144 + 51641297971344 = 5034512^2 + 7186188^2 .

It is not an unprimeable number, because it can be changed into a prime (76987609049489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141521339893 + ... + 141521340436.

It is an arithmetic number, because the mean of its divisors is an integer number (7896890781207).

Almost surely, 2^{76987609049488} is an apocalyptic number.

It is an amenable number.

76987609049488 is an abundant number, since it is smaller than the sum of its proper divisors (80950206574652).

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

76987609049488 is a wasteful number, since it uses less digits than its factorization.

76987609049488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283042680354 (or 283042680348 counting only the distinct ones).

The product of its (nonzero) digits is 10534551552, while the sum is 85.

The spelling of 76987609049488 in words is "seventy-six trillion, nine hundred eighty-seven billion, six hundred nine million, forty-nine thousand, four hundred eighty-eight".