11928708525 has 24 divisors (see below), whose sum is σ = 19917412704. Its totient is φ = 6298984000.

The previous prime is 11928708521. The next prime is 11928708577. The reversal of 11928708525 is 52580782911.

It is not a de Polignac number, because 11928708525 - 2² = 11928708521 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11928708521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 779799 + ... + 794948.

It is an arithmetic number, because the mean of its divisors is an integer number (829892196).

Almost surely, 2^11928708525 is an apocalyptic number.

11928708525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11928708525 is a deficient number, since it is larger than the sum of its proper divisors (7988704179).

11928708525 is a wasteful number, since it uses less digits than its factorization.

11928708525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574861 (or 1574856 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 48.

The spelling of 11928708525 in words is "eleven billion, nine hundred twenty-eight million, seven hundred eight thousand, five hundred twenty-five".