63953890362 has 24 divisors (see below), whose sum is σ = 143698865856. Its totient is φ = 21317963292.

The previous prime is 63953890361. The next prime is 63953890387. The reversal of 63953890362 is 26309835936.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 63953890299 and 63953890308.

It is not an unprimeable number, because it can be changed into a prime (63953890361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65795698 + ... + 65796669.

It is an arithmetic number, because the mean of its divisors is an integer number (5987452744).

Almost surely, 2^63953890362 is an apocalyptic number.

63953890362 is an abundant number, since it is smaller than the sum of its proper divisors (79744975494).

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

63953890362 is a wasteful number, since it uses less digits than its factorization.

63953890362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131592384 (or 131592372 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 54.

The spelling of 63953890362 in words is "sixty-three billion, nine hundred fifty-three million, eight hundred ninety thousand, three hundred sixty-two".