72551754537607 has 4 divisors (see below), whose sum is σ = 72571947069600. Its totient is φ = 72531562005616.

The previous prime is 72551754537599. The next prime is 72551754537637. The reversal of 72551754537607 is 70673545715527.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72551754537607 - 2³ = 72551754537599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72551754537637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10096260607 + ... + 10096267792.

It is an arithmetic number, because the mean of its divisors is an integer number (18142986767400).

Almost surely, 2^{72551754537607} is an apocalyptic number.

72551754537607 is a deficient number, since it is larger than the sum of its proper divisors (20192531993).

72551754537607 is a wasteful number, since it uses less digits than its factorization.

72551754537607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20192531992.

The product of its (nonzero) digits is 216090000, while the sum is 64.

The spelling of 72551754537607 in words is "seventy-two trillion, five hundred fifty-one billion, seven hundred fifty-four million, five hundred thirty-seven thousand, six hundred seven".