72031548774 has 32 divisors (see below), whose sum is σ = 152296260480. Its totient is φ = 22649170752.

The previous prime is 72031548769. The next prime is 72031548811. The reversal of 72031548774 is 47784513027.

It is a super-2 number, since 2×72031548774² (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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1329352 + ... + 1382475.

It is an arithmetic number, because the mean of its divisors is an integer number (4759258140).

Almost surely, 2^72031548774 is an apocalyptic number.

72031548774 is an abundant number, since it is smaller than the sum of its proper divisors (80264711706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72031548774 is a wasteful number, since it uses less digits than its factorization.

72031548774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2712084.

The product of its (nonzero) digits is 1317120, while the sum is 48.

The spelling of 72031548774 in words is "seventy-two billion, thirty-one million, five hundred forty-eight thousand, seven hundred seventy-four".