11427578900 has 18 divisors (see below), whose sum is σ = 24797846430. Its totient is φ = 4571031520.

The previous prime is 11427578879. The next prime is 11427578923. The reversal of 11427578900 is 987572411.

It can be written as a sum of positive squares in 3 ways, for example, as 194546704 + 11233032196 = 13948^2 + 105986^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57137795 + ... + 57137994.

It is an arithmetic number, because the mean of its divisors is an integer number (1377658135).

Almost surely, 2^11427578900 is an apocalyptic number.

11427578900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11427578900 is an abundant number, since it is smaller than the sum of its proper divisors (13370267530).

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

11427578900 is a wasteful number, since it uses less digits than its factorization.

11427578900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114275803 (or 114275796 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 44.

The spelling of 11427578900 in words is "eleven billion, four hundred twenty-seven million, five hundred seventy-eight thousand, nine hundred".