616280694725 has 6 divisors (see below), whose sum is σ = 764188061490. Its totient is φ = 493024555760.

The previous prime is 616280694719. The next prime is 616280694767. The reversal of 616280694725 is 527496082616.

It can be written as a sum of positive squares in 3 ways, for example, as 10427064769 + 605853629956 = 102113^2 + 778366^2 .

It is not a de Polignac number, because 616280694725 - 2³⁶ = 547561217989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12325613870 + ... + 12325613919.

It is an arithmetic number, because the mean of its divisors is an integer number (127364676915).

Almost surely, 2^616280694725 is an apocalyptic number.

It is an amenable number.

616280694725 is a deficient number, since it is larger than the sum of its proper divisors (147907366765).

616280694725 is a wasteful number, since it uses less digits than its factorization.

616280694725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24651227799 (or 24651227794 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 56.

The spelling of 616280694725 in words is "six hundred sixteen billion, two hundred eighty million, six hundred ninety-four thousand, seven hundred twenty-five".