72437364700451 has 4 divisors (see below), whose sum is σ = 72871121375472. Its totient is φ = 72003608025432.

The previous prime is 72437364700447. The next prime is 72437364700511. The reversal of 72437364700451 is 15400746373427.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72437364700451 - 2² = 72437364700447 is a prime.

It is a super-2 number, since 2×72437364700451² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72437364700393 and 72437364700402.

It is not an unprimeable number, because it can be changed into a prime (72437364700751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216878337260 + ... + 216878337593.

It is an arithmetic number, because the mean of its divisors is an integer number (18217780343868).

Almost surely, 2^{72437364700451} is an apocalyptic number.

72437364700451 is a deficient number, since it is larger than the sum of its proper divisors (433756675021).

72437364700451 is a wasteful number, since it uses less digits than its factorization.

72437364700451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433756675020.

The product of its (nonzero) digits is 11854080, while the sum is 53.

The spelling of 72437364700451 in words is "seventy-two trillion, four hundred thirty-seven billion, three hundred sixty-four million, seven hundred thousand, four hundred fifty-one".