13025351638 has 8 divisors (see below), whose sum is σ = 21040952688. Its totient is φ = 6011700744.

The previous prime is 13025351629. The next prime is 13025351639. The reversal of 13025351638 is 83615352031.

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

It is a junction number, because it is equal to n+sod(n) for n = 13025351597 and 13025351606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13025351639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250487506 + ... + 250487557.

It is an arithmetic number, because the mean of its divisors is an integer number (2630119086).

Almost surely, 2^13025351638 is an apocalyptic number.

13025351638 is a deficient number, since it is larger than the sum of its proper divisors (8015601050).

13025351638 is a wasteful number, since it uses less digits than its factorization.

13025351638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500975078.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 13025351638 in words is "thirteen billion, twenty-five million, three hundred fifty-one thousand, six hundred thirty-eight".