72925445571 has 8 divisors (see below), whose sum is σ = 106073375424. Its totient is φ = 44197239720.

The previous prime is 72925445563. The next prime is 72925445587. The reversal of 72925445571 is 17554452927.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72925445571 - 2³ = 72925445563 is a prime.

It is a super-2 number, since 2×72925445571² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72925445561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1104930961 + ... + 1104931026.

It is an arithmetic number, because the mean of its divisors is an integer number (13259171928).

Almost surely, 2^72925445571 is an apocalyptic number.

72925445571 is a deficient number, since it is larger than the sum of its proper divisors (33147929853).

72925445571 is a wasteful number, since it uses less digits than its factorization.

72925445571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2209862001.

The product of its digits is 3528000, while the sum is 51.

The spelling of 72925445571 in words is "seventy-two billion, nine hundred twenty-five million, four hundred forty-five thousand, five hundred seventy-one".