63770785887 has 8 divisors (see below), whose sum is σ = 85190293504. Its totient is φ = 42432567768.

The previous prime is 63770785783. The next prime is 63770785913. The reversal of 63770785887 is 78858707736.

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

It is not a de Polignac number, because 63770785887 - 2¹⁵ = 63770753119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63770785087) 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, 20320543 + ... + 20323680.

It is an arithmetic number, because the mean of its divisors is an integer number (10648786688).

Almost surely, 2^63770785887 is an apocalyptic number.

63770785887 is a deficient number, since it is larger than the sum of its proper divisors (21419507617).

63770785887 is a wasteful number, since it uses less digits than its factorization.

63770785887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40644749.

The product of its (nonzero) digits is 110638080, while the sum is 66.

The spelling of 63770785887 in words is "sixty-three billion, seven hundred seventy million, seven hundred eighty-five thousand, eight hundred eighty-seven".