61630122460 has 12 divisors (see below), whose sum is σ = 129423257208. Its totient is φ = 24652048976.

The previous prime is 61630122451. The next prime is 61630122461. The reversal of 61630122460 is 6422103616.

61630122460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61630122461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1540753042 + ... + 1540753081.

It is an arithmetic number, because the mean of its divisors is an integer number (10785271434).

Almost surely, 2^61630122460 is an apocalyptic number.

It is an amenable number.

61630122460 is an abundant number, since it is smaller than the sum of its proper divisors (67793134748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61630122460 is a wasteful number, since it uses less digits than its factorization.

61630122460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3081506132 (or 3081506130 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 61630122460 in words is "sixty-one billion, six hundred thirty million, one hundred twenty-two thousand, four hundred sixty".