5631119878871 has 2 divisors, whose sum is σ = 5631119878872. Its totient is φ = 5631119878870.

The previous prime is 5631119878807. The next prime is 5631119879027. The reversal of 5631119878871 is 1788789111365.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5631119878871 - 2⁶ = 5631119878807 is a prime.

It is a super-2 number, since 2×5631119878871² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5631119878798 and 5631119878807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5631119878171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2815559939435 + 2815559939436.

It is an arithmetic number, because the mean of its divisors is an integer number (2815559939436).

Almost surely, 2^{5631119878871} is an apocalyptic number.

5631119878871 is a deficient number, since it is larger than the sum of its proper divisors (1).

5631119878871 is an equidigital number, since it uses as much as digits as its factorization.

5631119878871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20321280, while the sum is 65.

The spelling of 5631119878871 in words is "five trillion, six hundred thirty-one billion, one hundred nineteen million, eight hundred seventy-eight thousand, eight hundred seventy-one".