39142598491 has 2 divisors, whose sum is σ = 39142598492. Its totient is φ = 39142598490.

The previous prime is 39142598489. The next prime is 39142598503. The reversal of 39142598491 is 19489524193.

It is a happy number.

39142598491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 39142598491 - 2¹ = 39142598489 is a prime.

Together with 39142598489, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (39142598431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19571299245 + 19571299246.

It is an arithmetic number, because the mean of its divisors is an integer number (19571299246).

Almost surely, 2^39142598491 is an apocalyptic number.

39142598491 is a deficient number, since it is larger than the sum of its proper divisors (1).

39142598491 is an equidigital number, since it uses as much as digits as its factorization.

39142598491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2799360, while the sum is 55.

The spelling of 39142598491 in words is "thirty-nine billion, one hundred forty-two million, five hundred ninety-eight thousand, four hundred ninety-one".