73872637408 has 48 divisors (see below), whose sum is σ = 147660919056. Its totient is φ = 36374307840.

The previous prime is 73872637381. The next prime is 73872637409. The reversal of 73872637408 is 80473627837.

It is a super-2 number, since 2×73872637408² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73872637409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 786898 + ... + 875758.

It is an arithmetic number, because the mean of its divisors is an integer number (3076269147).

Almost surely, 2^73872637408 is an apocalyptic number.

It is an amenable number.

73872637408 is a deficient number, since it is larger than the sum of its proper divisors (73788281648).

73872637408 is a wasteful number, since it uses less digits than its factorization.

73872637408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89267 (or 89259 counting only the distinct ones).

The product of its (nonzero) digits is 9483264, while the sum is 55.

The spelling of 73872637408 in words is "seventy-three billion, eight hundred seventy-two million, six hundred thirty-seven thousand, four hundred eight".