72551422405 has 16 divisors (see below), whose sum is σ = 108544466304. Its totient is φ = 45226860480.

The previous prime is 72551422399. The next prime is 72551422421. The reversal of 72551422405 is 50422415527.

It is not a de Polignac number, because 72551422405 - 2⁷ = 72551422277 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 15 ways as a sum of consecutive naturals, for example, 94222242 + ... + 94223011.

It is an arithmetic number, because the mean of its divisors is an integer number (6784029144).

Almost surely, 2^72551422405 is an apocalyptic number.

It is an amenable number.

72551422405 is a deficient number, since it is larger than the sum of its proper divisors (35993043899).

72551422405 is a wasteful number, since it uses less digits than its factorization.

72551422405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188445276.

The product of its (nonzero) digits is 112000, while the sum is 37.

The spelling of 72551422405 in words is "seventy-two billion, five hundred fifty-one million, four hundred twenty-two thousand, four hundred five".