61706280925 has 6 divisors (see below), whose sum is σ = 76515788378. Its totient is φ = 49365024720.

The previous prime is 61706280901. The next prime is 61706280931. The reversal of 61706280925 is 52908260716.

It can be written as a sum of positive squares in 3 ways, for example, as 15887594116 + 45818686809 = 126046^2 + 214053^2 .

It is a de Polignac number, because none of the positive numbers 2^k-61706280925 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1234125594 + ... + 1234125643.

Almost surely, 2^61706280925 is an apocalyptic number.

It is an amenable number.

61706280925 is a deficient number, since it is larger than the sum of its proper divisors (14809507453).

61706280925 is a wasteful number, since it uses less digits than its factorization.

61706280925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2468251247 (or 2468251242 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 61706280925 in words is "sixty-one billion, seven hundred six million, two hundred eighty thousand, nine hundred twenty-five".