15730142840 has 96 divisors (see below), whose sum is σ = 37781262000. Its totient is φ = 5892956160.

The previous prime is 15730142839. The next prime is 15730142881. The reversal of 15730142840 is 4824103751.

It is a self number, because there is not a number n which added to its sum of digits gives 15730142840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2435936 + ... + 2442384.

Almost surely, 2^15730142840 is an apocalyptic number.

15730142840 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 15730142840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18890631000).

15730142840 is an abundant number, since it is smaller than the sum of its proper divisors (22051119160).

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

15730142840 is a wasteful number, since it uses less digits than its factorization.

15730142840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6705 (or 6684 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The spelling of 15730142840 in words is "fifteen billion, seven hundred thirty million, one hundred forty-two thousand, eight hundred forty".