77500544325 has 48 divisors (see below), whose sum is σ = 130017839040. Its totient is φ = 40730260480.

The previous prime is 77500544321. The next prime is 77500544383. The reversal of 77500544325 is 52344500577.

It is not a de Polignac number, because 77500544325 - 2² = 77500544321 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77500544321) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1439746 + ... + 1492604.

It is an arithmetic number, because the mean of its divisors is an integer number (2708704980).

Almost surely, 2^77500544325 is an apocalyptic number.

77500544325 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

77500544325 is a deficient number, since it is larger than the sum of its proper divisors (52517294715).

77500544325 is a wasteful number, since it uses less digits than its factorization.

77500544325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53158 (or 53153 counting only the distinct ones).

The product of its (nonzero) digits is 588000, while the sum is 42.

The spelling of 77500544325 in words is "seventy-seven billion, five hundred million, five hundred forty-four thousand, three hundred twenty-five".