61057577599 has 2 divisors, whose sum is σ = 61057577600. Its totient is φ = 61057577598.

The previous prime is 61057577557. The next prime is 61057577657. The reversal of 61057577599 is 99577575016.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61057577599 - 2¹³ = 61057569407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61057577549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30528788799 + 30528788800.

It is an arithmetic number, because the mean of its divisors is an integer number (30528788800).

Almost surely, 2^61057577599 is an apocalyptic number.

61057577599 is a deficient number, since it is larger than the sum of its proper divisors (1).

61057577599 is an equidigital number, since it uses as much as digits as its factorization.

61057577599 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20837250, while the sum is 61.

The spelling of 61057577599 in words is "sixty-one billion, fifty-seven million, five hundred seventy-seven thousand, five hundred ninety-nine".