25793109690 has 16 divisors (see below), whose sum is σ = 61903463328. Its totient is φ = 6878162576.

The previous prime is 25793109689. The next prime is 25793109721. The reversal of 25793109690 is 9690139752.

It is a happy number.

It is a super-2 number, since 2×25793109690² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429885132 + ... + 429885191.

It is an arithmetic number, because the mean of its divisors is an integer number (3868966458).

Almost surely, 2^25793109690 is an apocalyptic number.

25793109690 is an abundant number, since it is smaller than the sum of its proper divisors (36110353638).

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

25793109690 is a wasteful number, since it uses less digits than its factorization.

25793109690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859770333.

The product of its (nonzero) digits is 918540, while the sum is 51.

The spelling of 25793109690 in words is "twenty-five billion, seven hundred ninety-three million, one hundred nine thousand, six hundred ninety".