15797474278404 has 192 divisors, whose sum is σ = 46056347688960. Its totient is φ = 4103197378560.

The previous prime is 15797474278393. The next prime is 15797474278429. The reversal of 15797474278404 is 40487247479751.

15797474278404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 71141052 + ... + 71362764.

It is an arithmetic number, because the mean of its divisors is an integer number (239876810880).

Almost surely, 2^{15797474278404} is an apocalyptic number.

15797474278404 is a gapful number since it is divisible by the number (14) 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 15797474278404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23028173844480).

15797474278404 is an abundant number, since it is smaller than the sum of its proper divisors (30258873410556).

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

15797474278404 is a wasteful number, since it uses less digits than its factorization.

15797474278404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222730 (or 222728 counting only the distinct ones).

The product of its (nonzero) digits is 442552320, while the sum is 69.

The spelling of 15797474278404 in words is "fifteen trillion, seven hundred ninety-seven billion, four hundred seventy-four million, two hundred seventy-eight thousand, four hundred four".