11778423700 has 36 divisors (see below), whose sum is σ = 25992398880. Its totient is φ = 4631513440.

The previous prime is 11778423649. The next prime is 11778423719. The reversal of 11778423700 is 732487711.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 992272 + ... + 1004071.

It is an arithmetic number, because the mean of its divisors is an integer number (722011080).

Almost surely, 2^11778423700 is an apocalyptic number.

11778423700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11778423700 is an abundant number, since it is smaller than the sum of its proper divisors (14213975180).

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

11778423700 is a wasteful number, since it uses less digits than its factorization.

11778423700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996416 (or 1996409 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 40.

The spelling of 11778423700 in words is "eleven billion, seven hundred seventy-eight million, four hundred twenty-three thousand, seven hundred".