61050860831 has 2 divisors, whose sum is σ = 61050860832. Its totient is φ = 61050860830.

The previous prime is 61050860807. The next prime is 61050860833. The reversal of 61050860831 is 13806805016.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61050860831 is a prime.

It is a super-2 number, since 2×61050860831² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 61050860833, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61050860833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30525430415 + 30525430416.

It is an arithmetic number, because the mean of its divisors is an integer number (30525430416).

Almost surely, 2^61050860831 is an apocalyptic number.

61050860831 is a deficient number, since it is larger than the sum of its proper divisors (1).

61050860831 is an equidigital number, since it uses as much as digits as its factorization.

61050860831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 61050860831 in words is "sixty-one billion, fifty million, eight hundred sixty thousand, eight hundred thirty-one".