11990534835 has 8 divisors (see below), whose sum is σ = 19184855760. Its totient is φ = 6394951904.

The previous prime is 11990534813. The next prime is 11990534849. The reversal of 11990534835 is 53843509911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11990534835 - 2⁶ = 11990534771 is a prime.

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, 399684480 + ... + 399684509.

It is an arithmetic number, because the mean of its divisors is an integer number (2398106970).

Almost surely, 2^11990534835 is an apocalyptic number.

11990534835 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11990534835 is a deficient number, since it is larger than the sum of its proper divisors (7194320925).

11990534835 is an equidigital number, since it uses as much as digits as its factorization.

11990534835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799368997.

The product of its (nonzero) digits is 583200, while the sum is 48.

The spelling of 11990534835 in words is "eleven billion, nine hundred ninety million, five hundred thirty-four thousand, eight hundred thirty-five".