77608551484 has 12 divisors (see below), whose sum is σ = 136413270504. Its totient is φ = 38633331344.

The previous prime is 77608551469. The next prime is 77608551499. The reversal of 77608551484 is 48415580677.

It is an interprime number because it is at equal distance from previous prime (77608551469) and next prime (77608551499).

It is a congruent number.

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, 42735079 + ... + 42736894.

It is an arithmetic number, because the mean of its divisors is an integer number (11367772542).

Almost surely, 2^77608551484 is an apocalyptic number.

It is an amenable number.

77608551484 is a deficient number, since it is larger than the sum of its proper divisors (58804719020).

77608551484 is a wasteful number, since it uses less digits than its factorization.

77608551484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85472204 (or 85472202 counting only the distinct ones).

The product of its (nonzero) digits is 7526400, while the sum is 55.

The spelling of 77608551484 in words is "seventy-seven billion, six hundred eight million, five hundred fifty-one thousand, four hundred eighty-four".