15135102820 has 48 divisors (see below), whose sum is σ = 32207535360. Its totient is φ = 5973417216.

The previous prime is 15135102797. The next prime is 15135102833. The reversal of 15135102820 is 2820153151.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3778939 + ... + 3782941.

It is an arithmetic number, because the mean of its divisors is an integer number (670990320).

Almost surely, 2^15135102820 is an apocalyptic number.

15135102820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15135102820 is an abundant number, since it is smaller than the sum of its proper divisors (17072432540).

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

15135102820 is a wasteful number, since it uses less digits than its factorization.

15135102820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6484 (or 6482 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

Adding to 15135102820 its reverse (2820153151), we get a palindrome (17955255971).

The spelling of 15135102820 in words is "fifteen billion, one hundred thirty-five million, one hundred two thousand, eight hundred twenty".