718538964 has 96 divisors (see below), whose sum is σ = 2023115136. Its totient is φ = 195540480.

The previous prime is 718538963. The next prime is 718539007. The reversal of 718538964 is 469835817.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (718538963) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57834 + ... + 69150.

It is an arithmetic number, because the mean of its divisors is an integer number (21074116).

Almost surely, 2^718538964 is an apocalyptic number.

718538964 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 718538964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1011557568).

718538964 is an abundant number, since it is smaller than the sum of its proper divisors (1304576172).

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

718538964 is a wasteful number, since it uses less digits than its factorization.

718538964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11385 (or 11383 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The square root of 718538964 is about 26805.5771062665. The cubic root of 718538964 is about 895.6742893646.

The spelling of 718538964 in words is "seven hundred eighteen million, five hundred thirty-eight thousand, nine hundred sixty-four".