77200551020 has 24 divisors (see below), whose sum is σ = 162194707584. Its totient is φ = 30866210816.

The previous prime is 77200550981. The next prime is 77200551037. The reversal of 77200551020 is 2015500277.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 830357 + ... + 918636.

It is an arithmetic number, because the mean of its divisors is an integer number (6758112816).

Almost surely, 2^77200551020 is an apocalyptic number.

It is an amenable number.

77200551020 is an abundant number, since it is smaller than the sum of its proper divisors (84994156564).

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

77200551020 is a wasteful number, since it uses less digits than its factorization.

77200551020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751209 (or 1751207 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 29.

The spelling of 77200551020 in words is "seventy-seven billion, two hundred million, five hundred fifty-one thousand, twenty".