11831724490 has 16 divisors (see below), whose sum is σ = 21299632200. Its totient is φ = 4732128000.

The previous prime is 11831724467. The next prime is 11831724511. The reversal of 11831724490 is 9442713811.

It can be written as a sum of positive squares in 4 ways, for example, as 10326827641 + 1504896849 = 101621^2 + 38793^2 .

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, 24286 + ... + 155734.

Almost surely, 2^11831724490 is an apocalyptic number.

11831724490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11831724490 is a deficient number, since it is larger than the sum of its proper divisors (9467907710).

11831724490 is a wasteful number, since it uses less digits than its factorization.

11831724490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140457.

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 11831724490 in words is "eleven billion, eight hundred thirty-one million, seven hundred twenty-four thousand, four hundred ninety".