11990534825 has 12 divisors (see below), whose sum is σ = 15047401488. Its totient is φ = 9476854800.

The previous prime is 11990534813. The next prime is 11990534849. The reversal of 11990534825 is 52843509911.

It is not a de Polignac number, because 11990534825 - 2⁶ = 11990534761 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11990534825.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2887211 + ... + 2891360.

It is an arithmetic number, because the mean of its divisors is an integer number (1253950124).

Almost surely, 2^11990534825 is an apocalyptic number.

It is an amenable number.

11990534825 is a deficient number, since it is larger than the sum of its proper divisors (3056866663).

11990534825 is an equidigital number, since it uses as much as digits as its factorization.

11990534825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5778664 (or 5778659 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 47.

The spelling of 11990534825 in words is "eleven billion, nine hundred ninety million, five hundred thirty-four thousand, eight hundred twenty-five".