19765032047 has 2 divisors, whose sum is σ = 19765032048. Its totient is φ = 19765032046.

The previous prime is 19765031981. The next prime is 19765032061. The reversal of 19765032047 is 74023056791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19765032047 - 2¹⁴ = 19765015663 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19765031989 and 19765032007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19765032347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9882516023 + 9882516024.

It is an arithmetic number, because the mean of its divisors is an integer number (9882516024).

Almost surely, 2^19765032047 is an apocalyptic number.

19765032047 is a deficient number, since it is larger than the sum of its proper divisors (1).

19765032047 is an equidigital number, since it uses as much as digits as its factorization.

19765032047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 44.

The spelling of 19765032047 in words is "nineteen billion, seven hundred sixty-five million, thirty-two thousand, forty-seven".