5158621938 has 8 divisors (see below), whose sum is σ = 10317243888. Its totient is φ = 1719540644.

The previous prime is 5158621913. The next prime is 5158621939. The reversal of 5158621938 is 8391268515.

It is a happy number.

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

5158621938 is an admirable number.

It is a super-2 number, since 2×5158621938² = 53222760598429751688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5158621939) 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, 429885156 + ... + 429885167.

It is an arithmetic number, because the mean of its divisors is an integer number (1289655486).

Almost surely, 2^5158621938 is an apocalyptic number.

5158621938 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

5158621938 is a wasteful number, since it uses less digits than its factorization.

5158621938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859770328.

The product of its digits is 518400, while the sum is 48.

The square root of 5158621938 is about 71823.5472390497. The cubic root of 5158621938 is about 1727.8706734863.

The spelling of 5158621938 in words is "five billion, one hundred fifty-eight million, six hundred twenty-one thousand, nine hundred thirty-eight".