76625621893 has 2 divisors, whose sum is σ = 76625621894. Its totient is φ = 76625621892.

The previous prime is 76625621819. The next prime is 76625621909. The reversal of 76625621893 is 39812652667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45072139204 + 31553482689 = 212302^2 + 177633^2 .

It is a cyclic number.

It is not a de Polignac number, because 76625621893 - 2²¹ = 76623524741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76625622893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38312810946 + 38312810947.

It is an arithmetic number, because the mean of its divisors is an integer number (38312810947).

Almost surely, 2^76625621893 is an apocalyptic number.

It is an amenable number.

76625621893 is a deficient number, since it is larger than the sum of its proper divisors (1).

76625621893 is an equidigital number, since it uses as much as digits as its factorization.

76625621893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6531840, while the sum is 55.

The spelling of 76625621893 in words is "seventy-six billion, six hundred twenty-five million, six hundred twenty-one thousand, eight hundred ninety-three".