61700311051 has 2 divisors, whose sum is σ = 61700311052. Its totient is φ = 61700311050.

The previous prime is 61700311027. The next prime is 61700311061. The reversal of 61700311051 is 15011300716.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61700311051 - 2⁷ = 61700310923 is a prime.

It is not a weakly prime, because it can be changed into another prime (61700311061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30850155525 + 30850155526.

It is an arithmetic number, because the mean of its divisors is an integer number (30850155526).

Almost surely, 2^61700311051 is an apocalyptic number.

61700311051 is a deficient number, since it is larger than the sum of its proper divisors (1).

61700311051 is an equidigital number, since it uses as much as digits as its factorization.

61700311051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630, while the sum is 25.

Adding to 61700311051 its reverse (15011300716), we get a palindrome (76711611767).

The spelling of 61700311051 in words is "sixty-one billion, seven hundred million, three hundred eleven thousand, fifty-one".