61980990059 has 2 divisors, whose sum is σ = 61980990060. Its totient is φ = 61980990058.

The previous prime is 61980990053. The next prime is 61980990077. The reversal of 61980990059 is 95009908916.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61980990059 - 2⁸ = 61980989803 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61980989986 and 61980990013.

It is not a weakly prime, because it can be changed into another prime (61980990053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30990495029 + 30990495030.

It is an arithmetic number, because the mean of its divisors is an integer number (30990495030).

Almost surely, 2^61980990059 is an apocalyptic number.

61980990059 is a deficient number, since it is larger than the sum of its proper divisors (1).

61980990059 is an equidigital number, since it uses as much as digits as its factorization.

61980990059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1574640, while the sum is 56.

The spelling of 61980990059 in words is "sixty-one billion, nine hundred eighty million, nine hundred ninety thousand, fifty-nine".