5158121326 has 32 divisors (see below), whose sum is σ = 7966632960. Its totient is φ = 2503872000.

The previous prime is 5158121323. The next prime is 5158121359. The reversal of 5158121326 is 6231218515.

It is a super-2 number, since 2×5158121326² = 53212431227471996552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5158121291 and 5158121300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5158121323) 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, 4480851 + ... + 4482001.

It is an arithmetic number, because the mean of its divisors is an integer number (248957280).

Almost surely, 2^5158121326 is an apocalyptic number.

5158121326 is a deficient number, since it is larger than the sum of its proper divisors (2808511634).

5158121326 is a wasteful number, since it uses less digits than its factorization.

5158121326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660.

The product of its digits is 14400, while the sum is 34.

The square root of 5158121326 is about 71820.0621414379. The cubic root of 5158121326 is about 1727.8147786636.

The spelling of 5158121326 in words is "five billion, one hundred fifty-eight million, one hundred twenty-one thousand, three hundred twenty-six".