72241720070 has 32 divisors (see below), whose sum is σ = 140129650080. Its totient is φ = 26656369920.

The previous prime is 72241720063. The next prime is 72241720127. The reversal of 72241720070 is 7002714227.

It is a happy number.

It is a super-2 number, since 2×72241720070² (a number of 23 digits) contains 22 as substring.

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, 17546 + ... + 380514.

It is an arithmetic number, because the mean of its divisors is an integer number (4379051565).

Almost surely, 2^72241720070 is an apocalyptic number.

72241720070 is a deficient number, since it is larger than the sum of its proper divisors (67887930010).

72241720070 is a wasteful number, since it uses less digits than its factorization.

72241720070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364520.

The product of its (nonzero) digits is 10976, while the sum is 32.

The spelling of 72241720070 in words is "seventy-two billion, two hundred forty-one million, seven hundred twenty thousand, seventy".