76923078431 has 2 divisors, whose sum is σ = 76923078432. Its totient is φ = 76923078430.

The previous prime is 76923078409. The next prime is 76923078481. The reversal of 76923078431 is 13487032967.

It is an a-pointer prime, because the next prime (76923078481) can be obtained adding 76923078431 to its sum of digits (50).

It is a weak prime.

It is an emirp because it is prime and its reverse (13487032967) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76923078431 - 2⁶ = 76923078367 is a prime.

It is a super-2 number, since 2×76923078431² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 76923078431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76923078481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38461539215 + 38461539216.

It is an arithmetic number, because the mean of its divisors is an integer number (38461539216).

Almost surely, 2^76923078431 is an apocalyptic number.

76923078431 is a deficient number, since it is larger than the sum of its proper divisors (1).

76923078431 is an equidigital number, since it uses as much as digits as its factorization.

76923078431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 76923078431 in words is "seventy-six billion, nine hundred twenty-three million, seventy-eight thousand, four hundred thirty-one".