15534404454 has 16 divisors (see below), whose sum is σ = 31082528880. Its totient is φ = 5175848160.

The previous prime is 15534404443. The next prime is 15534404467. The reversal of 15534404454 is 45440443551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556917 + ... + 584144.

It is an arithmetic number, because the mean of its divisors is an integer number (1942658055).

Almost surely, 2^15534404454 is an apocalyptic number.

15534404454 is an abundant number, since it is smaller than the sum of its proper divisors (15548124426).

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

15534404454 is a wasteful number, since it uses less digits than its factorization.

15534404454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143335.

The product of its (nonzero) digits is 384000, while the sum is 39.

The spelling of 15534404454 in words is "fifteen billion, five hundred thirty-four million, four hundred four thousand, four hundred fifty-four".