15148427819 has 4 divisors (see below), whose sum is σ = 17312488944. Its totient is φ = 12984366696.

The previous prime is 15148427807. The next prime is 15148427821. The reversal of 15148427819 is 91872484151.

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

It is not a de Polignac number, because 15148427819 - 2⁴ = 15148427803 is a prime.

It is a super-2 number, since 2×15148427819² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15148427519) 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, 1082030552 + ... + 1082030565.

It is an arithmetic number, because the mean of its divisors is an integer number (4328122236).

Almost surely, 2^15148427819 is an apocalyptic number.

15148427819 is a deficient number, since it is larger than the sum of its proper divisors (2164061125).

15148427819 is an equidigital number, since it uses as much as digits as its factorization.

15148427819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2164061124.

The product of its digits is 645120, while the sum is 50.

The spelling of 15148427819 in words is "fifteen billion, one hundred forty-eight million, four hundred twenty-seven thousand, eight hundred nineteen".