11958078576 has 20 divisors (see below), whose sum is σ = 30891703112. Its totient is φ = 3986026176.

The previous prime is 11958078569. The next prime is 11958078577. The reversal of 11958078576 is 67587085911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11958078577) 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, 124563271 + ... + 124563366.

Almost surely, 2^11958078576 is an apocalyptic number.

11958078576 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11958078576 is an abundant number, since it is smaller than the sum of its proper divisors (18933624536).

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

11958078576 is a wasteful number, since it uses less digits than its factorization.

11958078576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249126648 (or 249126642 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 57.

The spelling of 11958078576 in words is "eleven billion, nine hundred fifty-eight million, seventy-eight thousand, five hundred seventy-six".