11922781260 has 48 divisors (see below), whose sum is σ = 35951773536. Its totient is φ = 2934838272.

The previous prime is 11922781249. The next prime is 11922781267. The reversal of 11922781260 is 6218722911.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (11922781267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7642029 + ... + 7643588.

It is an arithmetic number, because the mean of its divisors is an integer number (748995282).

Almost surely, 2^11922781260 is an apocalyptic number.

11922781260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11922781260 is an abundant number, since it is smaller than the sum of its proper divisors (24028992276).

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

11922781260 is a wasteful number, since it uses less digits than its factorization.

11922781260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15285642 (or 15285640 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The spelling of 11922781260 in words is "eleven billion, nine hundred twenty-two million, seven hundred eighty-one thousand, two hundred sixty".