77625752127 has 24 divisors (see below), whose sum is σ = 131344503552. Its totient is φ = 40325065200.

The previous prime is 77625752111. The next prime is 77625752131. The reversal of 77625752127 is 72125752677.

It is not a de Polignac number, because 77625752127 - 2⁴ = 77625752111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77625752127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77625752177) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24001399 + ... + 24004632.

It is an arithmetic number, because the mean of its divisors is an integer number (5472687648).

Almost surely, 2^77625752127 is an apocalyptic number.

77625752127 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

77625752127 is a deficient number, since it is larger than the sum of its proper divisors (53718751425).

77625752127 is a wasteful number, since it uses less digits than its factorization.

77625752127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48006059 (or 48006052 counting only the distinct ones).

The product of its digits is 2881200, while the sum is 51.

The spelling of 77625752127 in words is "seventy-seven billion, six hundred twenty-five million, seven hundred fifty-two thousand, one hundred twenty-seven".