73776347427131 has 4 divisors (see below), whose sum is σ = 74050608942000. Its totient is φ = 73502085912264.

The previous prime is 73776347427091. The next prime is 73776347427151. The reversal of 73776347427131 is 13172474367737.

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 73776347427131 - 2⁴⁶ = 3407603249467 is a prime.

It is a super-2 number, since 2×73776347427131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73776347427151) 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, 137130757031 + ... + 137130757568.

It is an arithmetic number, because the mean of its divisors is an integer number (18512652235500).

Almost surely, 2^{73776347427131} is an apocalyptic number.

73776347427131 is a deficient number, since it is larger than the sum of its proper divisors (274261514869).

73776347427131 is a wasteful number, since it uses less digits than its factorization.

73776347427131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274261514868.

The product of its digits is 87127488, while the sum is 62.

The spelling of 73776347427131 in words is "seventy-three trillion, seven hundred seventy-six billion, three hundred forty-seven million, four hundred twenty-seven thousand, one hundred thirty-one".