19955767463 has 2 divisors, whose sum is σ = 19955767464. Its totient is φ = 19955767462.

The previous prime is 19955767457. The next prime is 19955767529. The reversal of 19955767463 is 36476755991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19955767463 - 2¹² = 19955763367 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19955767396 and 19955767405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19955767453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9977883731 + 9977883732.

It is an arithmetic number, because the mean of its divisors is an integer number (9977883732).

Almost surely, 2^19955767463 is an apocalyptic number.

19955767463 is a deficient number, since it is larger than the sum of its proper divisors (1).

19955767463 is an equidigital number, since it uses as much as digits as its factorization.

19955767463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42865200, while the sum is 62.

The spelling of 19955767463 in words is "nineteen billion, nine hundred fifty-five million, seven hundred sixty-seven thousand, four hundred sixty-three".