15845426337020 has 48 divisors (see below), whose sum is σ = 38038302220800. Its totient is φ = 5431392028224.

The previous prime is 15845426337019. The next prime is 15845426337023. The reversal of 15845426337020 is 2073362454851.

It is a self number, because there is not a number n which added to its sum of digits gives 15845426337020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15845426337023) 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, 13232144 + ... + 14379863.

It is an arithmetic number, because the mean of its divisors is an integer number (792464629600).

Almost surely, 2^{15845426337020} is an apocalyptic number.

15845426337020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15845426337020 is an abundant number, since it is smaller than the sum of its proper divisors (22192875883780).

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

15845426337020 is a wasteful number, since it uses less digits than its factorization.

15845426337020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27616122 (or 27616120 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 50.

The spelling of 15845426337020 in words is "fifteen trillion, eight hundred forty-five billion, four hundred twenty-six million, three hundred thirty-seven thousand, twenty".