15129065047 has 16 divisors (see below), whose sum is σ = 15702216192. Its totient is φ = 14566970880.

The previous prime is 15129064991. The next prime is 15129065053. The reversal of 15129065047 is 74056092151.

It is a cyclic number.

It is not a de Polignac number, because 15129065047 - 2⁷ = 15129064919 is a prime.

It is a super-2 number, since 2×15129065047² (a number of 21 digits) contains 22 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 (15129065747) 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, 2777847 + ... + 2783287.

It is an arithmetic number, because the mean of its divisors is an integer number (981388512).

Almost surely, 2^15129065047 is an apocalyptic number.

15129065047 is a deficient number, since it is larger than the sum of its proper divisors (573151145).

15129065047 is an equidigital number, since it uses as much as digits as its factorization.

15129065047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6438.

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 15129065047 in words is "fifteen billion, one hundred twenty-nine million, sixty-five thousand, forty-seven".