15423868120 has 64 divisors (see below), whose sum is σ = 37009677600. Its totient is φ = 5764823040.

The previous prime is 15423868091. The next prime is 15423868133. The reversal of 15423868120 is 2186832451.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12930 + ... + 176110.

Almost surely, 2^15423868120 is an apocalyptic number.

15423868120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15423868120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18504838800).

15423868120 is an abundant number, since it is smaller than the sum of its proper divisors (21585809480).

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

15423868120 is a wasteful number, since it uses less digits than its factorization.

15423868120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163348 (or 163344 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The spelling of 15423868120 in words is "fifteen billion, four hundred twenty-three million, eight hundred sixty-eight thousand, one hundred twenty".