11928990510 has 48 divisors (see below), whose sum is σ = 31023654480. Its totient is φ = 3180215040.

The previous prime is 11928990509. The next prime is 11928990581. The reversal of 11928990510 is 1509982911.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 367750 + ... + 398870.

It is an arithmetic number, because the mean of its divisors is an integer number (646326135).

Almost surely, 2^11928990510 is an apocalyptic number.

11928990510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11928990510 is an abundant number, since it is smaller than the sum of its proper divisors (19094663970).

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

11928990510 is a wasteful number, since it uses less digits than its factorization.

11928990510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35393 (or 35390 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 45.

The spelling of 11928990510 in words is "eleven billion, nine hundred twenty-eight million, nine hundred ninety thousand, five hundred ten".