72422751072 has 144 divisors (see below), whose sum is σ = 230763520512. Its totient is φ = 19792523520.

The previous prime is 72422751043. The next prime is 72422751101. The reversal of 72422751072 is 27015722427.

It is an interprime number because it is at equal distance from previous prime (72422751043) and next prime (72422751101).

It is a super-3 number, since 3×72422751072³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72422751072.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 226504 + ... + 442887.

It is an arithmetic number, because the mean of its divisors is an integer number (1602524448).

Almost surely, 2^72422751072 is an apocalyptic number.

It is an amenable number.

72422751072 is an abundant number, since it is smaller than the sum of its proper divisors (158340769440).

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

72422751072 is a wasteful number, since it uses less digits than its factorization.

72422751072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669441 (or 669426 counting only the distinct ones).

The product of its (nonzero) digits is 109760, while the sum is 39.

The spelling of 72422751072 in words is "seventy-two billion, four hundred twenty-two million, seven hundred fifty-one thousand, seventy-two".