11899452000 has 96 divisors (see below), whose sum is σ = 38982644064. Its totient is φ = 3173184000.

The previous prime is 11899451983. The next prime is 11899452013. The reversal of 11899452000 is 25499811.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 11899452000.

It is a congruent number.

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, 483811 + ... + 507810.

It is an arithmetic number, because the mean of its divisors is an integer number (406069209).

Almost surely, 2^11899452000 is an apocalyptic number.

11899452000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11899452000 is an abundant number, since it is smaller than the sum of its proper divisors (27083192064).

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

11899452000 is an equidigital number, since it uses as much as digits as its factorization.

11899452000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991649 (or 991631 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 39.

The spelling of 11899452000 in words is "eleven billion, eight hundred ninety-nine million, four hundred fifty-two thousand".