15372132838 has 4 divisors (see below), whose sum is σ = 23058199260. Its totient is φ = 7686066418.

The previous prime is 15372132833. The next prime is 15372132847. The reversal of 15372132838 is 83823127351.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 15372132794 and 15372132803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15372132833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3843033208 + ... + 3843033211.

It is an arithmetic number, because the mean of its divisors is an integer number (5764549815).

Almost surely, 2^15372132838 is an apocalyptic number.

15372132838 is a deficient number, since it is larger than the sum of its proper divisors (7686066422).

15372132838 is an equidigital number, since it uses as much as digits as its factorization.

15372132838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7686066421.

The product of its digits is 241920, while the sum is 43.

The spelling of 15372132838 in words is "fifteen billion, three hundred seventy-two million, one hundred thirty-two thousand, eight hundred thirty-eight".