11405772840 has 128 divisors (see below), whose sum is σ = 42660587520. Its totient is φ = 2370028800.

The previous prime is 11405772817. The next prime is 11405772881. The reversal of 11405772840 is 4827750411.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 607956 + ... + 626435.

It is an arithmetic number, because the mean of its divisors is an integer number (333285840).

Almost surely, 2^11405772840 is an apocalyptic number.

11405772840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11405772840 is an abundant number, since it is smaller than the sum of its proper divisors (31254814680).

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

11405772840 is a wasteful number, since it uses less digits than its factorization.

11405772840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234423 (or 1234419 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 39.

The spelling of 11405772840 in words is "eleven billion, four hundred five million, seven hundred seventy-two thousand, eight hundred forty".