11125720478 has 8 divisors (see below), whose sum is σ = 16691978568. Its totient is φ = 5561727624.

The previous prime is 11125720433. The next prime is 11125720481. The reversal of 11125720478 is 87402752111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 553976 + ... + 573707.

It is an arithmetic number, because the mean of its divisors is an integer number (2086497321).

Almost surely, 2^11125720478 is an apocalyptic number.

11125720478 is a deficient number, since it is larger than the sum of its proper divisors (5566258090).

11125720478 is a wasteful number, since it uses less digits than its factorization.

11125720478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132618.

The product of its (nonzero) digits is 31360, while the sum is 38.

The spelling of 11125720478 in words is "eleven billion, one hundred twenty-five million, seven hundred twenty thousand, four hundred seventy-eight".