10259491538 has 32 divisors (see below), whose sum is σ = 15909191424. Its totient is φ = 4959309312.

The previous prime is 10259491537. The next prime is 10259491591. The reversal of 10259491538 is 83519495201.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a junction number, because it is equal to n+sod(n) for n = 10259491492 and 10259491501.

It is not an unprimeable number, because it can be changed into a prime (10259491537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7995845 + ... + 7997127.

It is an arithmetic number, because the mean of its divisors is an integer number (497162232).

Almost surely, 2^10259491538 is an apocalyptic number.

10259491538 is a deficient number, since it is larger than the sum of its proper divisors (5649699886).

10259491538 is a wasteful number, since it uses less digits than its factorization.

10259491538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306.

The product of its (nonzero) digits is 388800, while the sum is 47.

The spelling of 10259491538 in words is "ten billion, two hundred fifty-nine million, four hundred ninety-one thousand, five hundred thirty-eight".