42919873963 has 2 divisors, whose sum is σ = 42919873964. Its totient is φ = 42919873962.

The previous prime is 42919873943. The next prime is 42919873987. The reversal of 42919873963 is 36937891924.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42919873963 is a prime.

It is not a weakly prime, because it can be changed into another prime (42919873933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21459936981 + 21459936982.

It is an arithmetic number, because the mean of its divisors is an integer number (21459936982).

Almost surely, 2^42919873963 is an apocalyptic number.

42919873963 is a deficient number, since it is larger than the sum of its proper divisors (1).

42919873963 is an equidigital number, since it uses as much as digits as its factorization.

42919873963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17635968, while the sum is 61.

The spelling of 42919873963 in words is "forty-two billion, nine hundred nineteen million, eight hundred seventy-three thousand, nine hundred sixty-three".