63485815767 has 48 divisors (see below), whose sum is σ = 99012834432. Its totient is φ = 35873927680.

The previous prime is 63485815753. The next prime is 63485815781. The reversal of 63485815767 is 76751858436.

It is an interprime number because it is at equal distance from previous prime (63485815753) and next prime (63485815781).

It is not a de Polignac number, because 63485815767 - 2⁷ = 63485815639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63485815767.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63485815567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 989353 + ... + 1051565.

It is an arithmetic number, because the mean of its divisors is an integer number (2062767384).

Almost surely, 2^63485815767 is an apocalyptic number.

63485815767 is a deficient number, since it is larger than the sum of its proper divisors (35527018665).

63485815767 is a wasteful number, since it uses less digits than its factorization.

63485815767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62368 (or 62351 counting only the distinct ones).

The product of its digits is 33868800, while the sum is 60.

The spelling of 63485815767 in words is "sixty-three billion, four hundred eighty-five million, eight hundred fifteen thousand, seven hundred sixty-seven".