63071162491 has 2 divisors, whose sum is σ = 63071162492. Its totient is φ = 63071162490.

The previous prime is 63071162489. The next prime is 63071162527. The reversal of 63071162491 is 19426117036.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63071162491 - 2¹ = 63071162489 is a prime.

It is a super-2 number, since 2×63071162491² (a number of 22 digits) contains 22 as substring.

Together with 63071162489, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (63071162431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31535581245 + 31535581246.

It is an arithmetic number, because the mean of its divisors is an integer number (31535581246).

Almost surely, 2^63071162491 is an apocalyptic number.

63071162491 is a deficient number, since it is larger than the sum of its proper divisors (1).

63071162491 is an equidigital number, since it uses as much as digits as its factorization.

63071162491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 63071162491 in words is "sixty-three billion, seventy-one million, one hundred sixty-two thousand, four hundred ninety-one".