25878696747 has 8 divisors (see below), whose sum is σ = 34509715344. Its totient is φ = 17250071328.

The previous prime is 25878696733. The next prime is 25878696797. The reversal of 25878696747 is 74769687852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-25878696747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25878696707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572908 + ... + 616425.

It is an arithmetic number, because the mean of its divisors is an integer number (4313714418).

Almost surely, 2^25878696747 is an apocalyptic number.

25878696747 is a deficient number, since it is larger than the sum of its proper divisors (8631018597).

25878696747 is a wasteful number, since it uses less digits than its factorization.

25878696747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196589.

The product of its digits is 284497920, while the sum is 69.

The spelling of 25878696747 in words is "twenty-five billion, eight hundred seventy-eight million, six hundred ninety-six thousand, seven hundred forty-seven".