25061739479 has 12 divisors (see below), whose sum is σ = 30093887808. Its totient is φ = 20788538400.

The previous prime is 25061739467. The next prime is 25061739487. The reversal of 25061739479 is 97493716052.

It is not a de Polignac number, because 25061739479 - 2⁴ = 25061739463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25061739479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25061739979) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 8247902 + ... + 8250939.

It is an arithmetic number, because the mean of its divisors is an integer number (2507823984).

Almost surely, 2^25061739479 is an apocalyptic number.

25061739479 is a deficient number, since it is larger than the sum of its proper divisors (5032148329).

25061739479 is a wasteful number, since it uses less digits than its factorization.

25061739479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16498886 (or 16498879 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 53.

The spelling of 25061739479 in words is "twenty-five billion, sixty-one million, seven hundred thirty-nine thousand, four hundred seventy-nine".