1452981984138 has 24 divisors (see below), whose sum is σ = 3149419531908. Its totient is φ = 484128574272.

The previous prime is 1452981984067. The next prime is 1452981984163. The reversal of 1452981984138 is 8314891892541.

1452981984138 is a `hidden beast` number, since 1 + 4 + 5 + 29 + 8 + 198 + 413 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1444388137929 + 8593846209 = 1201827^2 + 92703^2 .

It is a super-2 number, since 2×1452981984138² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16517731 + ... + 16605462.

Almost surely, 2^{1452981984138} is an apocalyptic number.

1452981984138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1452981984138 is an abundant number, since it is smaller than the sum of its proper divisors (1696437547770).

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

1452981984138 is a wasteful number, since it uses less digits than its factorization.

1452981984138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33125638 (or 33125635 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 63.

The spelling of 1452981984138 in words is "one trillion, four hundred fifty-two billion, nine hundred eighty-one million, nine hundred eighty-four thousand, one hundred thirty-eight".