63400481191 has 8 divisors (see below), whose sum is σ = 63625395104. Its totient is φ = 63175956480.

The previous prime is 63400481171. The next prime is 63400481201. The reversal of 63400481191 is 19118400436.

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

It is a cyclic number.

It is not a de Polignac number, because 63400481191 - 2⁷ = 63400481063 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63400481191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63400481101) 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, 231031 + ... + 424471.

It is an arithmetic number, because the mean of its divisors is an integer number (7953174388).

Almost surely, 2^63400481191 is an apocalyptic number.

63400481191 is a deficient number, since it is larger than the sum of its proper divisors (224913913).

63400481191 is a wasteful number, since it uses less digits than its factorization.

63400481191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194601.

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 63400481191 in words is "sixty-three billion, four hundred million, four hundred eighty-one thousand, one hundred ninety-one".