718918956 has 96 divisors (see below), whose sum is σ = 2175559680. Its totient is φ = 201025152.

The previous prime is 718918951. The next prime is 718918957. The reversal of 718918956 is 659819817.

It is a super-2 number, since 2×718918956² = 1033688930592259872, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (718918951) 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, 25416 + ... + 45648.

It is an arithmetic number, because the mean of its divisors is an integer number (22662080).

Almost surely, 2^718918956 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 718918956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1087779840).

718918956 is an abundant number, since it is smaller than the sum of its proper divisors (1456640724).

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

718918956 is a wasteful number, since it uses less digits than its factorization.

718918956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20300 (or 20292 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 54.

The square root of 718918956 is about 26812.6640973999. The cubic root of 718918956 is about 895.8321509432.

The spelling of 718918956 in words is "seven hundred eighteen million, nine hundred eighteen thousand, nine hundred fifty-six".