11933411780 has 12 divisors (see below), whose sum is σ = 25060164780. Its totient is φ = 4773364704.

The previous prime is 11933411759. The next prime is 11933411821. The reversal of 11933411780 is 8711433911.

It can be written as a sum of positive squares in 2 ways, for example, as 1638468484 + 10294943296 = 40478^2 + 101464^2 .

It is a super-2 number, since 2×11933411780² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298335275 + ... + 298335314.

It is an arithmetic number, because the mean of its divisors is an integer number (2088347065).

Almost surely, 2^11933411780 is an apocalyptic number.

11933411780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11933411780 is an abundant number, since it is smaller than the sum of its proper divisors (13126753000).

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

11933411780 is a wasteful number, since it uses less digits than its factorization.

11933411780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596670598 (or 596670596 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 38.

The spelling of 11933411780 in words is "eleven billion, nine hundred thirty-three million, four hundred eleven thousand, seven hundred eighty".