764431267380 has 576 divisors, whose sum is σ = 2648945908224. Its totient is φ = 163652403200.

The previous prime is 764431267291. The next prime is 764431267393. The reversal of 764431267380 is 83762134467.

It is a Smith number, since the sum of its digits (51) 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 (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 150446440 + ... + 150451520.

It is an arithmetic number, because the mean of its divisors is an integer number (4598864424).

Almost surely, 2^764431267380 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 764431267380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1324472954112).

764431267380 is an abundant number, since it is smaller than the sum of its proper divisors (1884514640844).

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

764431267380 is a wasteful number, since it uses less digits than its factorization.

764431267380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5208 (or 5195 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 51.

The spelling of 764431267380 in words is "seven hundred sixty-four billion, four hundred thirty-one million, two hundred sixty-seven thousand, three hundred eighty".