61227602057 has 2 divisors, whose sum is σ = 61227602058. Its totient is φ = 61227602056.

The previous prime is 61227602021. The next prime is 61227602063. The reversal of 61227602057 is 75020672216.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48786207376 + 12441394681 = 220876^2 + 111541^2 .

It is a cyclic number.

It is not a de Polignac number, because 61227602057 - 2¹⁸ = 61227339913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61227602057.

It is not a weakly prime, because it can be changed into another prime (61227602017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30613801028 + 30613801029.

It is an arithmetic number, because the mean of its divisors is an integer number (30613801029).

Almost surely, 2^61227602057 is an apocalyptic number.

It is an amenable number.

61227602057 is a deficient number, since it is larger than the sum of its proper divisors (1).

61227602057 is an equidigital number, since it uses as much as digits as its factorization.

61227602057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 61227602057 in words is "sixty-one billion, two hundred twenty-seven million, six hundred two thousand, fifty-seven".