12454722450 has 72 divisors (see below), whose sum is σ = 33480232500. Its totient is φ = 3319418880.

The previous prime is 12454722443. The next prime is 12454722473. The reversal of 12454722450 is 5422745421.

It can be written as a sum of positive squares in 6 ways, for example, as 5599379241 + 6855343209 = 74829^2 + 82797^2 .

It is a super-2 number, since 2×12454722450² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 933426 + ... + 946674.

Almost surely, 2^12454722450 is an apocalyptic number.

12454722450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12454722450 is an abundant number, since it is smaller than the sum of its proper divisors (21025510050).

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

12454722450 is a wasteful number, since it uses less digits than its factorization.

12454722450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15356 (or 15348 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 36.

The spelling of 12454722450 in words is "twelve billion, four hundred fifty-four million, seven hundred twenty-two thousand, four hundred fifty".