63197917494 has 16 divisors (see below), whose sum is σ = 128176058880. Its totient is φ = 20769268520.

The previous prime is 63197917493. The next prime is 63197917499. The reversal of 63197917494 is 49471979136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63197917493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74175534 + ... + 74176385.

It is an arithmetic number, because the mean of its divisors is an integer number (8011003680).

Almost surely, 2^63197917494 is an apocalyptic number.

63197917494 is an abundant number, since it is smaller than the sum of its proper divisors (64978141386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63197917494 is a wasteful number, since it uses less digits than its factorization.

63197917494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148351995.

The product of its digits is 10287648, while the sum is 60.

The spelling of 63197917494 in words is "sixty-three billion, one hundred ninety-seven million, nine hundred seventeen thousand, four hundred ninety-four".