72031723054 has 16 divisors (see below), whose sum is σ = 110753543376. Its totient is φ = 35114996800.

The previous prime is 72031723037. The next prime is 72031723063. The reversal of 72031723054 is 45032713027.

It is a super-2 number, since 2×72031723054² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150757 + ... + 408400.

It is an arithmetic number, because the mean of its divisors is an integer number (6922096461).

Almost surely, 2^72031723054 is an apocalyptic number.

72031723054 is a deficient number, since it is larger than the sum of its proper divisors (38721820322).

72031723054 is a wasteful number, since it uses less digits than its factorization.

72031723054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560771.

The product of its (nonzero) digits is 35280, while the sum is 34.

The spelling of 72031723054 in words is "seventy-two billion, thirty-one million, seven hundred twenty-three thousand, fifty-four".