11897508530 has 16 divisors (see below), whose sum is σ = 21417652800. Its totient is φ = 4758528432.

The previous prime is 11897508527. The next prime is 11897508547. The reversal of 11897508530 is 3580579811.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56621 + ... + 164319.

It is an arithmetic number, because the mean of its divisors is an integer number (1338603300).

Almost surely, 2^11897508530 is an apocalyptic number.

11897508530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11897508530 is a deficient number, since it is larger than the sum of its proper divisors (9520144270).

11897508530 is a wasteful number, since it uses less digits than its factorization.

11897508530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118753.

The product of its (nonzero) digits is 302400, while the sum is 47.

The spelling of 11897508530 in words is "eleven billion, eight hundred ninety-seven million, five hundred eight thousand, five hundred thirty".