64763669802 has 64 divisors (see below), whose sum is σ = 142975445760. Its totient is φ = 19434015744.

The previous prime is 64763669777. The next prime is 64763669843. The reversal of 64763669802 is 20896636746.

It is a happy number.

64763669802 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 643474 + ... + 737282.

It is an arithmetic number, because the mean of its divisors is an integer number (2233991340).

Almost surely, 2^64763669802 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64763669802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71487722880).

64763669802 is an abundant number, since it is smaller than the sum of its proper divisors (78211775958).

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

64763669802 is a wasteful number, since it uses less digits than its factorization.

64763669802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94047.

The product of its (nonzero) digits is 15676416, while the sum is 57.

The spelling of 64763669802 in words is "sixty-four billion, seven hundred sixty-three million, six hundred sixty-nine thousand, eight hundred two".