72123714381 has 8 divisors (see below), whose sum is σ = 96213211840. Its totient is φ = 48058346592.

The previous prime is 72123714337. The next prime is 72123714413. The reversal of 72123714381 is 18341732127.

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

It is not a de Polignac number, because 72123714381 - 2⁹ = 72123713869 is a prime.

It is a super-2 number, since 2×72123714381² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72123714301) 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 7 ways as a sum of consecutive naturals, for example, 6025441 + ... + 6037398.

It is an arithmetic number, because the mean of its divisors is an integer number (12026651480).

Almost surely, 2^72123714381 is an apocalyptic number.

It is an amenable number.

72123714381 is a deficient number, since it is larger than the sum of its proper divisors (24089497459).

72123714381 is a wasteful number, since it uses less digits than its factorization.

72123714381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12064835.

The product of its digits is 56448, while the sum is 39.

The spelling of 72123714381 in words is "seventy-two billion, one hundred twenty-three million, seven hundred fourteen thousand, three hundred eighty-one".