15288238081 has 8 divisors (see below), whose sum is σ = 15343125120. Its totient is φ = 15233413968.

The previous prime is 15288238027. The next prime is 15288238099. The reversal of 15288238081 is 18083288251.

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

It is a cyclic number.

It is not a de Polignac number, because 15288238081 - 2²⁷ = 15154020353 is a prime.

It is a super-2 number, since 2×15288238081² (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 (15288238001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501175 + ... + 530803.

It is an arithmetic number, because the mean of its divisors is an integer number (1917890640).

It is a Proth number, since it is equal to 3645 ⋅ 2²² + 1 and 3645 < 2²².

Almost surely, 2^15288238081 is an apocalyptic number.

It is an amenable number.

15288238081 is a deficient number, since it is larger than the sum of its proper divisors (54887039).

15288238081 is a wasteful number, since it uses less digits than its factorization.

15288238081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31463.

The product of its (nonzero) digits is 245760, while the sum is 46.

The spelling of 15288238081 in words is "fifteen billion, two hundred eighty-eight million, two hundred thirty-eight thousand, eighty-one".