76434554957 has 2 divisors, whose sum is σ = 76434554958. Its totient is φ = 76434554956.

The previous prime is 76434554923. The next prime is 76434555037. The reversal of 76434554957 is 75945543467.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50665958281 + 25768596676 = 225091^2 + 160526^2 .

It is a cyclic number.

It is not a de Polignac number, because 76434554957 - 2⁸ = 76434554701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 76434554896 and 76434554905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76434554057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38217277478 + 38217277479.

It is an arithmetic number, because the mean of its divisors is an integer number (38217277479).

Almost surely, 2^76434554957 is an apocalyptic number.

It is an amenable number.

76434554957 is a deficient number, since it is larger than the sum of its proper divisors (1).

76434554957 is an equidigital number, since it uses as much as digits as its factorization.

76434554957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504000, while the sum is 59.

The spelling of 76434554957 in words is "seventy-six billion, four hundred thirty-four million, five hundred fifty-four thousand, nine hundred fifty-seven".