15745170042 has 96 divisors (see below), whose sum is σ = 41415004800. Its totient is φ = 4343407488.

The previous prime is 15745169981. The next prime is 15745170083. The reversal of 15745170042 is 24007154751.

It is a junction number, because it is equal to n+sod(n) for n = 15745169979 and 15745170006.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 293134 + ... + 342662.

It is an arithmetic number, because the mean of its divisors is an integer number (431406300).

Almost surely, 2^15745170042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15745170042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20707502400).

15745170042 is an abundant number, since it is smaller than the sum of its proper divisors (25669834758).

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

15745170042 is a wasteful number, since it uses less digits than its factorization.

15745170042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49605 (or 49570 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The spelling of 15745170042 in words is "fifteen billion, seven hundred forty-five million, one hundred seventy thousand, forty-two".