11791474780 has 12 divisors (see below), whose sum is σ = 24762097080. Its totient is φ = 4716589904.

The previous prime is 11791474741. The next prime is 11791474781. The reversal of 11791474780 is 8747419711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11791474781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294786850 + ... + 294786889.

It is an arithmetic number, because the mean of its divisors is an integer number (2063508090).

Almost surely, 2^11791474780 is an apocalyptic number.

11791474780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11791474780 is an abundant number, since it is smaller than the sum of its proper divisors (12970622300).

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

11791474780 is a wasteful number, since it uses less digits than its factorization.

11791474780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589573748 (or 589573746 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 49.

The spelling of 11791474780 in words is "eleven billion, seven hundred ninety-one million, four hundred seventy-four thousand, seven hundred eighty".