15000806835 has 72 divisors (see below), whose sum is σ = 30272991840. Its totient is φ = 6851513088.

The previous prime is 15000806827. The next prime is 15000806857. The reversal of 15000806835 is 53860800051.

It is not a de Polignac number, because 15000806835 - 2³ = 15000806827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15000806835.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3400111 + ... + 3404519.

It is an arithmetic number, because the mean of its divisors is an integer number (420458220).

Almost surely, 2^15000806835 is an apocalyptic number.

15000806835 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15000806835 is an abundant number, since it is smaller than the sum of its proper divisors (15272185005).

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

15000806835 is a wasteful number, since it uses less digits than its factorization.

15000806835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5977 (or 5967 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 15000806835 in words is "fifteen billion, eight hundred six thousand, eight hundred thirty-five".