15450453873 has 12 divisors (see below), whose sum is σ = 22333292800. Its totient is φ = 10292931576.

The previous prime is 15450453871. The next prime is 15450453979. The reversal of 15450453873 is 37835405451.

It is a happy number.

15450453873 is a `hidden beast` number, since 1 + 5 + 45 + 0 + 4 + 538 + 73 = 666.

It is not a de Polignac number, because 15450453873 - 2¹ = 15450453871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15450453871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 600961 + ... + 626142.

Almost surely, 2^15450453873 is an apocalyptic number.

It is an amenable number.

15450453873 is a deficient number, since it is larger than the sum of its proper divisors (6882838927).

15450453873 is a wasteful number, since it uses less digits than its factorization.

15450453873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228508 (or 1228505 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 45.

The spelling of 15450453873 in words is "fifteen billion, four hundred fifty million, four hundred fifty-three thousand, eight hundred seventy-three".