77055498975 has 48 divisors (see below), whose sum is σ = 156798075392. Its totient is φ = 32515724160.

The previous prime is 77055498937. The next prime is 77055498979. The reversal of 77055498975 is 57989455077.

It is a happy number.

It is not a de Polignac number, because 77055498975 - 2¹⁷ = 77055367903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77055498979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5638267 + ... + 5651916.

Almost surely, 2^77055498975 is an apocalyptic number.

77055498975 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

77055498975 is an abundant number, since it is smaller than the sum of its proper divisors (79742576417).

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

77055498975 is a wasteful number, since it uses less digits than its factorization.

77055498975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11290216 (or 11290211 counting only the distinct ones).

The product of its (nonzero) digits is 111132000, while the sum is 66.

The spelling of 77055498975 in words is "seventy-seven billion, fifty-five million, four hundred ninety-eight thousand, nine hundred seventy-five".