15478622460 has 288 divisors, whose sum is σ = 56672179200. Its totient is φ = 3340569600.

The previous prime is 15478622443. The next prime is 15478622473. The reversal of 15478622460 is 6422687451.

15478622460 is a `hidden beast` number, since 1 + 547 + 8 + 62 + 2 + 46 + 0 = 666.

15478622460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8593560 + ... + 8595360.

It is an arithmetic number, because the mean of its divisors is an integer number (196778400).

Almost surely, 2^15478622460 is an apocalyptic number.

15478622460 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 15478622460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28336089600).

15478622460 is an abundant number, since it is smaller than the sum of its proper divisors (41193556740).

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

15478622460 is a wasteful number, since it uses less digits than its factorization.

15478622460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2201 (or 2196 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 15478622460 in words is "fifteen billion, four hundred seventy-eight million, six hundred twenty-two thousand, four hundred sixty".