11423978375 has 8 divisors (see below), whose sum is σ = 14257125168. Its totient is φ = 9139182600.

The previous prime is 11423978341. The next prime is 11423978387. The reversal of 11423978375 is 57387932411.

It is not a de Polignac number, because 11423978375 - 2²⁴ = 11407201159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45695789 + ... + 45696038.

It is an arithmetic number, because the mean of its divisors is an integer number (1782140646).

Almost surely, 2^11423978375 is an apocalyptic number.

11423978375 is a deficient number, since it is larger than the sum of its proper divisors (2833146793).

11423978375 is an frugal number, since it uses more digits than its factorization.

11423978375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91391842 (or 91391832 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 50.

The spelling of 11423978375 in words is "eleven billion, four hundred twenty-three million, nine hundred seventy-eight thousand, three hundred seventy-five".