73919338931 has 2 divisors, whose sum is σ = 73919338932. Its totient is φ = 73919338930.

The previous prime is 73919338921. The next prime is 73919338949. The reversal of 73919338931 is 13983391937.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73919338931 is a prime.

It is a super-2 number, since 2×73919338931² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73919338921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36959669465 + 36959669466.

It is an arithmetic number, because the mean of its divisors is an integer number (36959669466).

Almost surely, 2^73919338931 is an apocalyptic number.

73919338931 is a deficient number, since it is larger than the sum of its proper divisors (1).

73919338931 is an equidigital number, since it uses as much as digits as its factorization.

73919338931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3306744, while the sum is 56.

The spelling of 73919338931 in words is "seventy-three billion, nine hundred nineteen million, three hundred thirty-eight thousand, nine hundred thirty-one".