11731423650 has 96 divisors (see below), whose sum is σ = 31681454400. Its totient is φ = 2861510400.

The previous prime is 11731423637. The next prime is 11731423687. The reversal of 11731423650 is 5632413711.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11680 + ... + 153620.

It is an arithmetic number, because the mean of its divisors is an integer number (330015150).

Almost surely, 2^11731423650 is an apocalyptic number.

11731423650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11731423650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15840727200).

11731423650 is an abundant number, since it is smaller than the sum of its proper divisors (19950030750).

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

11731423650 is a wasteful number, since it uses less digits than its factorization.

11731423650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142004 (or 141999 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The spelling of 11731423650 in words is "eleven billion, seven hundred thirty-one million, four hundred twenty-three thousand, six hundred fifty".