72251761622 has 8 divisors (see below), whose sum is σ = 108525499536. Its totient is φ = 36076595112.

The previous prime is 72251761609. The next prime is 72251761627. The reversal of 72251761622 is 22616715227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 72251761622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72251761627) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 24641018 + ... + 24643949.

It is an arithmetic number, because the mean of its divisors is an integer number (13565687442).

Almost surely, 2^72251761622 is an apocalyptic number.

72251761622 is a deficient number, since it is larger than the sum of its proper divisors (36273737914).

72251761622 is a wasteful number, since it uses less digits than its factorization.

72251761622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49285702.

The product of its digits is 141120, while the sum is 41.

The spelling of 72251761622 in words is "seventy-two billion, two hundred fifty-one million, seven hundred sixty-one thousand, six hundred twenty-two".