11731530774 has 16 divisors (see below), whose sum is σ = 23473652400. Its totient is φ = 3908745120.

The previous prime is 11731530743. The next prime is 11731530823. The reversal of 11731530774 is 47703513711.

It is a Curzon number.

It is a congruent number.

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, 426849 + ... + 453500.

It is an arithmetic number, because the mean of its divisors is an integer number (1467103275).

Almost surely, 2^11731530774 is an apocalyptic number.

11731530774 is an abundant number, since it is smaller than the sum of its proper divisors (11742121626).

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

11731530774 is a wasteful number, since it uses less digits than its factorization.

11731530774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882575.

The product of its (nonzero) digits is 61740, while the sum is 39.

The spelling of 11731530774 in words is "eleven billion, seven hundred thirty-one million, five hundred thirty thousand, seven hundred seventy-four".