11461444640 has 48 divisors (see below), whose sum is σ = 28254961728. Its totient is φ = 4385246976.

The previous prime is 11461444637. The next prime is 11461444661. The reversal of 11461444640 is 4644416411.

It is a self number, because there is not a number n which added to its sum of digits gives 11461444640.

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, 1553582 + ... + 1560941.

It is an arithmetic number, because the mean of its divisors is an integer number (588645036).

Almost surely, 2^11461444640 is an apocalyptic number.

11461444640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11461444640 is an abundant number, since it is smaller than the sum of its proper divisors (16793517088).

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

11461444640 is a wasteful number, since it uses less digits than its factorization.

11461444640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3114561 (or 3114553 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The spelling of 11461444640 in words is "eleven billion, four hundred sixty-one million, four hundred forty-four thousand, six hundred forty".