77775127352 has 16 divisors (see below), whose sum is σ = 157045930440. Its totient is φ = 35896212576.

The previous prime is 77775127327. The next prime is 77775127361. The reversal of 77775127352 is 25372157777.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 77775127294 and 77775127303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373918778 + ... + 373918985.

Almost surely, 2^77775127352 is an apocalyptic number.

It is an amenable number.

77775127352 is an abundant number, since it is smaller than the sum of its proper divisors (79270803088).

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

77775127352 is a wasteful number, since it uses less digits than its factorization.

77775127352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747837782 (or 747837778 counting only the distinct ones).

The product of its digits is 5042100, while the sum is 53.

The spelling of 77775127352 in words is "seventy-seven billion, seven hundred seventy-five million, one hundred twenty-seven thousand, three hundred fifty-two".