61207688033 has 2 divisors, whose sum is σ = 61207688034. Its totient is φ = 61207688032.

The previous prime is 61207687993. The next prime is 61207688053. The reversal of 61207688033 is 33088670216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51653016529 + 9554671504 = 227273^2 + 97748^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61207688033 is a prime.

It is not a weakly prime, because it can be changed into another prime (61207688053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30603844016 + 30603844017.

It is an arithmetic number, because the mean of its divisors is an integer number (30603844017).

Almost surely, 2^61207688033 is an apocalyptic number.

It is an amenable number.

61207688033 is a deficient number, since it is larger than the sum of its proper divisors (1).

61207688033 is an equidigital number, since it uses as much as digits as its factorization.

61207688033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 61207688033 in words is "sixty-one billion, two hundred seven million, six hundred eighty-eight thousand, thirty-three".