15138071468 has 24 divisors (see below), whose sum is σ = 28561911840. Its totient is φ = 6978850560.

The previous prime is 15138071461. The next prime is 15138071477. The reversal of 15138071468 is 86417083151.

It is a super-2 number, since 2×15138071468² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15138071461) 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, 119408 + ... + 211031.

It is an arithmetic number, because the mean of its divisors is an integer number (1190079660).

Almost surely, 2^15138071468 is an apocalyptic number.

It is an amenable number.

15138071468 is a deficient number, since it is larger than the sum of its proper divisors (13423840372).

15138071468 is a wasteful number, since it uses less digits than its factorization.

15138071468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331337 (or 331335 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 44.

The spelling of 15138071468 in words is "fifteen billion, one hundred thirty-eight million, seventy-one thousand, four hundred sixty-eight".