11423705640 has 64 divisors (see below), whose sum is σ = 34326884160. Its totient is φ = 3041364480.

The previous prime is 11423705603. The next prime is 11423705653. The reversal of 11423705640 is 4650732411.

11423705640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3106 + ... + 151185.

It is an arithmetic number, because the mean of its divisors is an integer number (536357565).

Almost surely, 2^11423705640 is an apocalyptic number.

11423705640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11423705640 is an abundant number, since it is smaller than the sum of its proper divisors (22903178520).

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

11423705640 is a wasteful number, since it uses less digits than its factorization.

11423705640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154922 (or 154918 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The spelling of 11423705640 in words is "eleven billion, four hundred twenty-three million, seven hundred five thousand, six hundred forty".