76433139961 has 2 divisors, whose sum is σ = 76433139962. Its totient is φ = 76433139960.

The previous prime is 76433139953. The next prime is 76433139967. The reversal of 76433139961 is 16993133467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47205818361 + 29227321600 = 217269^2 + 170960^2 .

It is a cyclic number.

It is not a de Polignac number, because 76433139961 - 2³ = 76433139953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 76433139899 and 76433139908.

It is not a weakly prime, because it can be changed into another prime (76433139967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38216569980 + 38216569981.

It is an arithmetic number, because the mean of its divisors is an integer number (38216569981).

Almost surely, 2^76433139961 is an apocalyptic number.

It is an amenable number.

76433139961 is a deficient number, since it is larger than the sum of its proper divisors (1).

76433139961 is an equidigital number, since it uses as much as digits as its factorization.

76433139961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2204496, while the sum is 52.

The spelling of 76433139961 in words is "seventy-six billion, four hundred thirty-three million, one hundred thirty-nine thousand, nine hundred sixty-one".