1361812419 has 20 divisors (see below), whose sum is σ = 2219251320. Its totient is φ = 825340320.

The previous prime is 1361812409. The next prime is 1361812471. The reversal of 1361812419 is 9142181631.

1361812419 is a `hidden beast` number, since 1 + 3 + 618 + 1 + 24 + 19 = 666.

1361812419 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1361812419 - 2⁹ = 1361811907 is a prime.

It is a super-2 number, since 2×1361812419² = 3709066129085263122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1361812409) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 763314 + ... + 765095.

It is an arithmetic number, because the mean of its divisors is an integer number (110962566).

Almost surely, 2^1361812419 is an apocalyptic number.

1361812419 is a deficient number, since it is larger than the sum of its proper divisors (857438901).

1361812419 is a wasteful number, since it uses less digits than its factorization.

1361812419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528432 (or 1528423 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 1361812419 is about 36902.7427029482. The cubic root of 1361812419 is about 1108.4235986609.

The spelling of 1361812419 in words is "one billion, three hundred sixty-one million, eight hundred twelve thousand, four hundred nineteen".