61907411344 has 45 divisors (see below), whose sum is σ = 127451102497. Its totient is φ = 29124937472.

The previous prime is 61907411231. The next prime is 61907411347. The reversal of 61907411344 is 44311470916.

It is a happy number.

The square root of 61907411344 is 248812.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 48197811600 + 13709599744 = 219540^2 + 117088^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61907411297 and 61907411306.

It is not an unprimeable number, because it can be changed into a prime (61907411347) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 16917387 + ... + 16921045.

Almost surely, 2^61907411344 is an apocalyptic number.

61907411344 is the 248812-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61907411344

61907411344 is an abundant number, since it is smaller than the sum of its proper divisors (65543691153).

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

61907411344 is an frugal number, since it uses more digits than its factorization.

61907411344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7360 (or 3678 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 61907411344 in words is "sixty-one billion, nine hundred seven million, four hundred eleven thousand, three hundred forty-four".