15415694240 has 24 divisors (see below), whose sum is σ = 36419578020. Its totient is φ = 6166277632.

The previous prime is 15415694233. The next prime is 15415694269. The reversal of 15415694240 is 4249651451.

15415694240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 15337336336 + 78357904 = 123844^2 + 8852^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48173885 + ... + 48174204.

Almost surely, 2^15415694240 is an apocalyptic number.

15415694240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15415694240 is an abundant number, since it is smaller than the sum of its proper divisors (21003883780).

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

15415694240 is an equidigital number, since it uses as much as digits as its factorization.

15415694240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96348104 (or 96348096 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 15415694240 in words is "fifteen billion, four hundred fifteen million, six hundred ninety-four thousand, two hundred forty".