61461406244 has 48 divisors (see below), whose sum is σ = 127327334400. Its totient is φ = 25399145856.

The previous prime is 61461406231. The next prime is 61461406271. The reversal of 61461406244 is 44260416416.

It is a junction number, because it is equal to n+sod(n) for n = 61461406198 and 61461406207.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 578717 + ... + 676635.

It is an arithmetic number, because the mean of its divisors is an integer number (2652652800).

Almost surely, 2^61461406244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61461406244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63663667200).

61461406244 is an abundant number, since it is smaller than the sum of its proper divisors (65865928156).

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

61461406244 is a wasteful number, since it uses less digits than its factorization.

61461406244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98732 (or 98730 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 38.

The spelling of 61461406244 in words is "sixty-one billion, four hundred sixty-one million, four hundred six thousand, two hundred forty-four".