15449469954 has 32 divisors (see below), whose sum is σ = 31870350720. Its totient is φ = 4989117312.

The previous prime is 15449469913. The next prime is 15449469983. The reversal of 15449469954 is 45996494451.

It is a super-2 number, since 2×15449469954² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97614 + ... + 201065.

It is an arithmetic number, because the mean of its divisors is an integer number (995948460).

Almost surely, 2^15449469954 is an apocalyptic number.

15449469954 is an abundant number, since it is smaller than the sum of its proper divisors (16420880766).

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

15449469954 is a wasteful number, since it uses less digits than its factorization.

15449469954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298954.

The product of its digits is 27993600, while the sum is 60.

The spelling of 15449469954 in words is "fifteen billion, four hundred forty-nine million, four hundred sixty-nine thousand, nine hundred fifty-four".