1949641063 has 2 divisors, whose sum is σ = 1949641064. Its totient is φ = 1949641062.

The previous prime is 1949641051. The next prime is 1949641097. The reversal of 1949641063 is 3601469491.

It is a weak prime.

It is an emirp because it is prime and its reverse (3601469491) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1949641063 is a prime.

It is a super-2 number, since 2×1949641063² = 7602200549071539938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1949641013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974820531 + 974820532.

It is an arithmetic number, because the mean of its divisors is an integer number (974820532).

Almost surely, 2^1949641063 is an apocalyptic number.

1949641063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1949641063 is an equidigital number, since it uses as much as digits as its factorization.

1949641063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 1949641063 is about 44154.7399833812. The cubic root of 1949641063 is about 1249.2563177438.

The spelling of 1949641063 in words is "one billion, nine hundred forty-nine million, six hundred forty-one thousand, sixty-three".