77297583207 has 16 divisors (see below), whose sum is σ = 116833055360. Its totient is φ = 45064177632.

The previous prime is 77297583199. The next prime is 77297583221. The reversal of 77297583207 is 70238579277.

It is a happy number.

It is not a de Polignac number, because 77297583207 - 2³ = 77297583199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77297583277) 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, 52156873 + ... + 52158354.

It is an arithmetic number, because the mean of its divisors is an integer number (7302065960).

Almost surely, 2^77297583207 is an apocalyptic number.

77297583207 is a deficient number, since it is larger than the sum of its proper divisors (39535472153).

77297583207 is a wasteful number, since it uses less digits than its factorization.

77297583207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104315262.

The product of its (nonzero) digits is 10372320, while the sum is 57.

The spelling of 77297583207 in words is "seventy-seven billion, two hundred ninety-seven million, five hundred eighty-three thousand, two hundred seven".