11621775534 has 8 divisors (see below), whose sum is σ = 23243551080. Its totient is φ = 3873925176.

The previous prime is 11621775527. The next prime is 11621775563. The reversal of 11621775534 is 43557712611.

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

11621775534 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 968481289 + ... + 968481300.

It is an arithmetic number, because the mean of its divisors is an integer number (2905443885).

Almost surely, 2^11621775534 is an apocalyptic number.

11621775534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11621775534 is a wasteful number, since it uses less digits than its factorization.

11621775534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936962594.

The product of its digits is 176400, while the sum is 42.

The spelling of 11621775534 in words is "eleven billion, six hundred twenty-one million, seven hundred seventy-five thousand, five hundred thirty-four".