15382508454 has 48 divisors (see below), whose sum is σ = 34628864400. Its totient is φ = 4929035328.

The previous prime is 15382508447. The next prime is 15382508459. The reversal of 15382508454 is 45480528351.

15382508454 is a `hidden beast` number, since 15 + 3 + 82 + 508 + 4 + 54 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15382508459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55197 + ... + 183879.

It is an arithmetic number, because the mean of its divisors is an integer number (721434675).

Almost surely, 2^15382508454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15382508454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17314432200).

15382508454 is an abundant number, since it is smaller than the sum of its proper divisors (19246355946).

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

15382508454 is a wasteful number, since it uses less digits than its factorization.

15382508454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128949 (or 128946 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 45.

The spelling of 15382508454 in words is "fifteen billion, three hundred eighty-two million, five hundred eight thousand, four hundred fifty-four".