60561447631 has 2 divisors, whose sum is σ = 60561447632. Its totient is φ = 60561447630.

The previous prime is 60561447607. The next prime is 60561447679. The reversal of 60561447631 is 13674416506.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 60561447631 - 2⁷ = 60561447503 is a prime.

It is a super-2 number, since 2×60561447631² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60561447691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30280723815 + 30280723816.

It is an arithmetic number, because the mean of its divisors is an integer number (30280723816).

Almost surely, 2^60561447631 is an apocalyptic number.

60561447631 is a deficient number, since it is larger than the sum of its proper divisors (1).

60561447631 is an equidigital number, since it uses as much as digits as its factorization.

60561447631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 60561447631 in words is "sixty billion, five hundred sixty-one million, four hundred forty-seven thousand, six hundred thirty-one".