72571214144 has 56 divisors (see below), whose sum is σ = 169184836128. Its totient is φ = 30449456640.

The previous prime is 72571214143. The next prime is 72571214171. The reversal of 72571214144 is 44141217527.

It is a super-2 number, since 2×72571214144² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72571214098 and 72571214107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72571214143) 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, 3955622 + ... + 3973925.

It is an arithmetic number, because the mean of its divisors is an integer number (3021157788).

Almost surely, 2^72571214144 is an apocalyptic number.

It is an amenable number.

72571214144 is an abundant number, since it is smaller than the sum of its proper divisors (96613621984).

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

72571214144 is a wasteful number, since it uses less digits than its factorization.

72571214144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7929583 (or 7929573 counting only the distinct ones).

The product of its digits is 62720, while the sum is 38.

The spelling of 72571214144 in words is "seventy-two billion, five hundred seventy-one million, two hundred fourteen thousand, one hundred forty-four".