73645763012525 has 24 divisors (see below), whose sum is σ = 100445959731648. Its totient is φ = 53560554894000.

The previous prime is 73645763012473. The next prime is 73645763012587. The reversal of 73645763012525 is 52521036754637.

It is not a de Polignac number, because 73645763012525 - 2²² = 73645758818221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1106589761 + ... + 1106656310.

It is an arithmetic number, because the mean of its divisors is an integer number (4185248322152).

Almost surely, 2^{73645763012525} is an apocalyptic number.

It is an amenable number.

73645763012525 is a deficient number, since it is larger than the sum of its proper divisors (26800196719123).

73645763012525 is a wasteful number, since it uses less digits than its factorization.

73645763012525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213246114 (or 2213246087 counting only the distinct ones).

The product of its (nonzero) digits is 31752000, while the sum is 56.

The spelling of 73645763012525 in words is "seventy-three trillion, six hundred forty-five billion, seven hundred sixty-three million, twelve thousand, five hundred twenty-five".