5661372463 has 2 divisors, whose sum is σ = 5661372464. Its totient is φ = 5661372462.

The previous prime is 5661372413. The next prime is 5661372517. The reversal of 5661372463 is 3642731665.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5661372463 is a prime.

It is a super-2 number, since 2×5661372463² = 64102276329629372738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5661372403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2830686231 + 2830686232.

It is an arithmetic number, because the mean of its divisors is an integer number (2830686232).

Almost surely, 2^5661372463 is an apocalyptic number.

5661372463 is a deficient number, since it is larger than the sum of its proper divisors (1).

5661372463 is an equidigital number, since it uses as much as digits as its factorization.

5661372463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 43.

The square root of 5661372463 is about 75242.0923619220. The cubic root of 5661372463 is about 1782.2716927300.

The spelling of 5661372463 in words is "five billion, six hundred sixty-one million, three hundred seventy-two thousand, four hundred sixty-three".