1381458451384 has 16 divisors (see below), whose sum is σ = 2825710468920. Its totient is φ = 627935659680.

The previous prime is 1381458451343. The next prime is 1381458451427. The reversal of 1381458451384 is 4831548541831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7849195659 + ... + 7849195834.

Almost surely, 2^{1381458451384} is an apocalyptic number.

It is an amenable number.

1381458451384 is an abundant number, since it is smaller than the sum of its proper divisors (1444252017536).

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

1381458451384 is a wasteful number, since it uses less digits than its factorization.

1381458451384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15698391510 (or 15698391506 counting only the distinct ones).

The product of its digits is 7372800, while the sum is 55.

The spelling of 1381458451384 in words is "one trillion, three hundred eighty-one billion, four hundred fifty-eight million, four hundred fifty-one thousand, three hundred eighty-four".