77352801977 has 16 divisors (see below), whose sum is σ = 84946240512. Its totient is φ = 69853483920.

The previous prime is 77352801973. The next prime is 77352801989. The reversal of 77352801977 is 77910825377.

It is not a de Polignac number, because 77352801977 - 2² = 77352801973 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77352801973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2938958 + ... + 2965160.

It is an arithmetic number, because the mean of its divisors is an integer number (5309140032).

Almost surely, 2^77352801977 is an apocalyptic number.

It is an amenable number.

77352801977 is a deficient number, since it is larger than the sum of its proper divisors (7593438535).

77352801977 is a wasteful number, since it uses less digits than its factorization.

77352801977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27988.

The product of its (nonzero) digits is 5186160, while the sum is 56.

The spelling of 77352801977 in words is "seventy-seven billion, three hundred fifty-two million, eight hundred one thousand, nine hundred seventy-seven".