15142865879 has 16 divisors (see below), whose sum is σ = 16668737280. Its totient is φ = 13692571200.

The previous prime is 15142865869. The next prime is 15142865891. The reversal of 15142865879 is 97856824151.

It is a cyclic number.

It is not a de Polignac number, because 15142865879 - 2⁴ = 15142865863 is a prime.

It is a super-3 number, since 3×15142865879³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15142865869) 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, 166979 + ... + 241179.

It is an arithmetic number, because the mean of its divisors is an integer number (1041796080).

Almost surely, 2^15142865879 is an apocalyptic number.

15142865879 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

15142865879 is a deficient number, since it is larger than the sum of its proper divisors (1525871401).

15142865879 is a wasteful number, since it uses less digits than its factorization.

15142865879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74710.

The product of its digits is 4838400, while the sum is 56.

The spelling of 15142865879 in words is "fifteen billion, one hundred forty-two million, eight hundred sixty-five thousand, eight hundred seventy-nine".