1913144621319 has 96 divisors (see below), whose sum is σ = 2995232181760. Its totient is φ = 1219086288000.

The previous prime is 1913144621293. The next prime is 1913144621327. The reversal of 1913144621319 is 9131264413191.

1913144621319 is a `hidden beast` number, since 1 + 9 + 1 + 3 + 1 + 4 + 4 + 621 + 3 + 19 = 666.

It is not a de Polignac number, because 1913144621319 - 2¹¹ = 1913144619271 is a prime.

It is a super-2 number, since 2×1913144621319² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1913144621389) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 576420342 + ... + 576423660.

Almost surely, 2^{1913144621319} is an apocalyptic number.

1913144621319 is a deficient number, since it is larger than the sum of its proper divisors (1082087560441).

1913144621319 is a wasteful number, since it uses less digits than its factorization.

1913144621319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4483 (or 4471 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The spelling of 1913144621319 in words is "one trillion, nine hundred thirteen billion, one hundred forty-four million, six hundred twenty-one thousand, three hundred nineteen".