5631378419 has 16 divisors (see below), whose sum is σ = 5914067904. Its totient is φ = 5357788800.

The previous prime is 5631378383. The next prime is 5631378481. The reversal of 5631378419 is 9148731365.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5631378419 is a prime.

It is a super-2 number, since 2×5631378419² = 63424845795957879122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5631378619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217277 + ... + 241809.

It is an arithmetic number, because the mean of its divisors is an integer number (369629244).

Almost surely, 2^5631378419 is an apocalyptic number.

5631378419 is a deficient number, since it is larger than the sum of its proper divisors (282689485).

5631378419 is a wasteful number, since it uses less digits than its factorization.

5631378419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24718.

The product of its digits is 544320, while the sum is 47.

The square root of 5631378419 is about 75042.5107455767. The cubic root of 5631378419 is about 1779.1186162704.

The spelling of 5631378419 in words is "five billion, six hundred thirty-one million, three hundred seventy-eight thousand, four hundred nineteen".