25196619636790 has 32 divisors (see below), whose sum is σ = 53038465793280. Its totient is φ = 8437937737824.

The previous prime is 25196619636767. The next prime is 25196619636817. The reversal of 25196619636790 is 9763691669152.

It is a super-2 number, since 2×25196619636790² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (70).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4185481980 + ... + 4185487999.

It is an arithmetic number, because the mean of its divisors is an integer number (1657452056040).

Almost surely, 2^{25196619636790} is an apocalyptic number.

25196619636790 is an abundant number, since it is smaller than the sum of its proper divisors (27841846156490).

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

25196619636790 is a wasteful number, since it uses less digits than its factorization.

25196619636790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8370970036.

The product of its (nonzero) digits is 198404640, while the sum is 70.

The spelling of 25196619636790 in words is "twenty-five trillion, one hundred ninety-six billion, six hundred nineteen million, six hundred thirty-six thousand, seven hundred ninety".