15412139740 has 24 divisors (see below), whose sum is σ = 32373774720. Its totient is φ = 6163278528.

The previous prime is 15412139657. The next prime is 15412139741. The reversal of 15412139740 is 4793121451.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 15412139740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15412139741) 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, 16812 + ... + 176371.

It is an arithmetic number, because the mean of its divisors is an integer number (1348907280).

Almost surely, 2^15412139740 is an apocalyptic number.

15412139740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15412139740 is an abundant number, since it is smaller than the sum of its proper divisors (16961634980).

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

15412139740 is a wasteful number, since it uses less digits than its factorization.

15412139740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197181 (or 197179 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 15412139740 in words is "fifteen billion, four hundred twelve million, one hundred thirty-nine thousand, seven hundred forty".