62909749961 has 2 divisors, whose sum is σ = 62909749962. Its totient is φ = 62909749960.

The previous prime is 62909749939. The next prime is 62909749979. The reversal of 62909749961 is 16994790926.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50263398025 + 12646351936 = 224195^2 + 112456^2 .

It is a cyclic number.

It is not a de Polignac number, because 62909749961 - 2²⁶ = 62842641097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 62909749894 and 62909749903.

It is not a weakly prime, because it can be changed into another prime (62909743961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31454874980 + 31454874981.

It is an arithmetic number, because the mean of its divisors is an integer number (31454874981).

Almost surely, 2^62909749961 is an apocalyptic number.

It is an amenable number.

62909749961 is a deficient number, since it is larger than the sum of its proper divisors (1).

62909749961 is an equidigital number, since it uses as much as digits as its factorization.

62909749961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13226976, while the sum is 62.

The spelling of 62909749961 in words is "sixty-two billion, nine hundred nine million, seven hundred forty-nine thousand, nine hundred sixty-one".