15873784218240 has 512 divisors, whose sum is σ = 55273692418560. Its totient is φ = 3851255808000.

The previous prime is 15873784218181. The next prime is 15873784218337. The reversal of 15873784218240 is 4281248737851.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5289496740 + ... + 5289499740.

It is an arithmetic number, because the mean of its divisors is an integer number (107956430505).

Almost surely, 2^{15873784218240} is an apocalyptic number.

15873784218240 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 15873784218240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27636846209280).

15873784218240 is an abundant number, since it is smaller than the sum of its proper divisors (39399908200320).

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

15873784218240 is a wasteful number, since it uses less digits than its factorization.

15873784218240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6012 (or 6000 counting only the distinct ones).

The product of its (nonzero) digits is 24084480, while the sum is 60.

The spelling of 15873784218240 in words is "fifteen trillion, eight hundred seventy-three billion, seven hundred eighty-four million, two hundred eighteen thousand, two hundred forty".