73777064939 has 2 divisors, whose sum is σ = 73777064940. Its totient is φ = 73777064938.

The previous prime is 73777064903. The next prime is 73777064947. The reversal of 73777064939 is 93946077737.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73777064939 is a prime.

It is a super-2 number, since 2×73777064939² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73777064839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36888532469 + 36888532470.

It is an arithmetic number, because the mean of its divisors is an integer number (36888532470).

Almost surely, 2^73777064939 is an apocalyptic number.

73777064939 is a deficient number, since it is larger than the sum of its proper divisors (1).

73777064939 is an equidigital number, since it uses as much as digits as its factorization.

73777064939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42007896, while the sum is 62.

The spelling of 73777064939 in words is "seventy-three billion, seven hundred seventy-seven million, sixty-four thousand, nine hundred thirty-nine".