38299932491 has 2 divisors, whose sum is σ = 38299932492. Its totient is φ = 38299932490.

The previous prime is 38299932467. The next prime is 38299932527. The reversal of 38299932491 is 19423999283.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38299932491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38299932491.

It is not a weakly prime, because it can be changed into another prime (38299932401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19149966245 + 19149966246.

It is an arithmetic number, because the mean of its divisors is an integer number (19149966246).

Almost surely, 2^38299932491 is an apocalyptic number.

38299932491 is a deficient number, since it is larger than the sum of its proper divisors (1).

38299932491 is an equidigital number, since it uses as much as digits as its factorization.

38299932491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7558272, while the sum is 59.

The spelling of 38299932491 in words is "thirty-eight billion, two hundred ninety-nine million, nine hundred thirty-two thousand, four hundred ninety-one".