63897115426 has 8 divisors (see below), whose sum is σ = 95886657360. Its totient is φ = 31934896308.

The previous prime is 63897115417. The next prime is 63897115427. The reversal of 63897115426 is 62451179836.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×63897115426² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63897115427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6824856 + ... + 6834211.

It is an arithmetic number, because the mean of its divisors is an integer number (11985832170).

Almost surely, 2^63897115426 is an apocalyptic number.

63897115426 is a deficient number, since it is larger than the sum of its proper divisors (31989541934).

63897115426 is a wasteful number, since it uses less digits than its factorization.

63897115426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13661408.

The product of its digits is 2177280, while the sum is 52.

The spelling of 63897115426 in words is "sixty-three billion, eight hundred ninety-seven million, one hundred fifteen thousand, four hundred twenty-six".