63780600091 has 8 divisors (see below), whose sum is σ = 72301895120. Its totient is φ = 55775747232.

The previous prime is 63780600071. The next prime is 63780600157. The reversal of 63780600091 is 19000608736.

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 63780600091 - 2¹⁷ = 63780469019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63780600001) 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, 129110280 + ... + 129110773.

It is an arithmetic number, because the mean of its divisors is an integer number (9037736890).

Almost surely, 2^63780600091 is an apocalyptic number.

63780600091 is a deficient number, since it is larger than the sum of its proper divisors (8521295029).

63780600091 is a wasteful number, since it uses less digits than its factorization.

63780600091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258221085.

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 63780600091 in words is "sixty-three billion, seven hundred eighty million, six hundred thousand, ninety-one".