15436905540 has 96 divisors (see below), whose sum is σ = 49414471680. Its totient is φ = 3527266176.

The previous prime is 15436905527. The next prime is 15436905559. The reversal of 15436905540 is 4550963451.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 15436905492 and 15436905501.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2307921 + ... + 2314599.

It is an arithmetic number, because the mean of its divisors is an integer number (514734080).

Almost surely, 2^15436905540 is an apocalyptic number.

15436905540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15436905540 is an abundant number, since it is smaller than the sum of its proper divisors (33977566140).

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

15436905540 is a wasteful number, since it uses less digits than its factorization.

15436905540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12201 (or 12199 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 15436905540 in words is "fifteen billion, four hundred thirty-six million, nine hundred five thousand, five hundred forty".