61120515587 has 2 divisors, whose sum is σ = 61120515588. Its totient is φ = 61120515586.

The previous prime is 61120515557. The next prime is 61120515611. The reversal of 61120515587 is 78551502116.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61120515587 - 2²⁸ = 60852080131 is a prime.

It is not a weakly prime, because it can be changed into another prime (61120515557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30560257793 + 30560257794.

It is an arithmetic number, because the mean of its divisors is an integer number (30560257794).

Almost surely, 2^61120515587 is an apocalyptic number.

61120515587 is a deficient number, since it is larger than the sum of its proper divisors (1).

61120515587 is an equidigital number, since it uses as much as digits as its factorization.

61120515587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84000, while the sum is 41.

The spelling of 61120515587 in words is "sixty-one billion, one hundred twenty million, five hundred fifteen thousand, five hundred eighty-seven".