77752534245 has 32 divisors (see below), whose sum is σ = 131822225280. Its totient is φ = 38999009280.

The previous prime is 77752534207. The next prime is 77752534393. The reversal of 77752534245 is 54243525777.

It is not a de Polignac number, because 77752534245 - 2¹¹ = 77752532197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 221446 + ... + 452264.

It is an arithmetic number, because the mean of its divisors is an integer number (4119444540).

Almost surely, 2^77752534245 is an apocalyptic number.

It is an amenable number.

77752534245 is a deficient number, since it is larger than the sum of its proper divisors (54069691035).

77752534245 is a wasteful number, since it uses less digits than its factorization.

77752534245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232165.

The product of its digits is 8232000, while the sum is 51.

The spelling of 77752534245 in words is "seventy-seven billion, seven hundred fifty-two million, five hundred thirty-four thousand, two hundred forty-five".