764842250064 has 120 divisors (see below), whose sum is σ = 2112811154368. Its totient is φ = 238360780800.

The previous prime is 764842250041. The next prime is 764842250089. The reversal of 764842250064 is 460052248467.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 764842249995 and 764842250022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1912104 + ... + 2277240.

Almost surely, 2^764842250064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 764842250064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1056405577184).

764842250064 is an abundant number, since it is smaller than the sum of its proper divisors (1347968904304).

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

764842250064 is a wasteful number, since it uses less digits than its factorization.

764842250064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365333 (or 365310 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 48.

The spelling of 764842250064 in words is "seven hundred sixty-four billion, eight hundred forty-two million, two hundred fifty thousand, sixty-four".