8625379453638 has 64 divisors (see below), whose sum is σ = 17331749978112. Its totient is φ = 2861666881920.

The previous prime is 8625379453631. The next prime is 8625379453651. The reversal of 8625379453638 is 8363549735268.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8625379453631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3328975723 + ... + 3328978313.

It is an arithmetic number, because the mean of its divisors is an integer number (270808593408).

Almost surely, 2^{8625379453638} is an apocalyptic number.

8625379453638 is an abundant number, since it is smaller than the sum of its proper divisors (8706370524474).

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

8625379453638 is a wasteful number, since it uses less digits than its factorization.

8625379453638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5429.

The product of its digits is 783820800, while the sum is 69.

The spelling of 8625379453638 in words is "eight trillion, six hundred twenty-five billion, three hundred seventy-nine million, four hundred fifty-three thousand, six hundred thirty-eight".