38497563897 has 32 divisors (see below), whose sum is σ = 56985801600. Its totient is φ = 22970138112.

The previous prime is 38497563851. The next prime is 38497563901. The reversal of 38497563897 is 79836579483.

It is not a de Polignac number, because 38497563897 - 2¹¹ = 38497561849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38497563817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53379 + ... + 282567.

It is an arithmetic number, because the mean of its divisors is an integer number (1780806300).

Almost surely, 2^38497563897 is an apocalyptic number.

It is an amenable number.

38497563897 is a deficient number, since it is larger than the sum of its proper divisors (18488237703).

38497563897 is a wasteful number, since it uses less digits than its factorization.

38497563897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229337.

The product of its digits is 274337280, while the sum is 69.

The spelling of 38497563897 in words is "thirty-eight billion, four hundred ninety-seven million, five hundred sixty-three thousand, eight hundred ninety-seven".