15281145886740 has 72 divisors (see below), whose sum is σ = 44313506196960. Its totient is φ = 3934455939456.

The previous prime is 15281145886739. The next prime is 15281145886751. The reversal of 15281145886740 is 4768854118251.

It is a super-2 number, since 2×15281145886740² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 151367950 + ... + 151468869.

Almost surely, 2^{15281145886740} is an apocalyptic number.

15281145886740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15281145886740 is an abundant number, since it is smaller than the sum of its proper divisors (29032360310220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15281145886740 is a wasteful number, since it uses less digits than its factorization.

15281145886740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302836889 (or 302836858 counting only the distinct ones).

The product of its (nonzero) digits is 17203200, while the sum is 60.

The spelling of 15281145886740 in words is "fifteen trillion, two hundred eighty-one billion, one hundred forty-five million, eight hundred eighty-six thousand, seven hundred forty".