15854373848868 has 48 divisors (see below), whose sum is σ = 39641552798400. Its totient is φ = 4913994440704.

The previous prime is 15854373848741. The next prime is 15854373848869. The reversal of 15854373848868 is 86884837345851.

It is a super-2 number, since 2×15854373848868² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15854373848793 and 15854373848802.

It is not an unprimeable number, because it can be changed into a prime (15854373848869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 468160893 + ... + 468194756.

It is an arithmetic number, because the mean of its divisors is an integer number (825865683300).

Almost surely, 2^{15854373848868} is an apocalyptic number.

It is an amenable number.

15854373848868 is an abundant number, since it is smaller than the sum of its proper divisors (23787178949532).

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

15854373848868 is a wasteful number, since it uses less digits than its factorization.

15854373848868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936355756 (or 936355754 counting only the distinct ones).

The product of its digits is 4954521600, while the sum is 78.

The spelling of 15854373848868 in words is "fifteen trillion, eight hundred fifty-four billion, three hundred seventy-three million, eight hundred forty-eight thousand, eight hundred sixty-eight".