718952768442 has 24 divisors (see below), whose sum is σ = 1573154081460. Its totient is φ = 237278140800.

The previous prime is 718952768419. The next prime is 718952768447. The reversal of 718952768442 is 244867259817.

It is a happy number.

718952768442 is a `hidden beast` number, since 7 + 1 + 8 + 9 + 527 + 68 + 4 + 42 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 606936041721 + 112016726721 = 779061^2 + 334689^2 .

It is a super-2 number, since 2×718952768442² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 718952768442.

It is not an unprimeable number, because it can be changed into a prime (718952768447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197729967 + ... + 197733602.

Almost surely, 2^718952768442 is an apocalyptic number.

718952768442 is an abundant number, since it is smaller than the sum of its proper divisors (854201313018).

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

718952768442 is a wasteful number, since it uses less digits than its factorization.

718952768442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395463678 (or 395463675 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 63.

The spelling of 718952768442 in words is "seven hundred eighteen billion, nine hundred fifty-two million, seven hundred sixty-eight thousand, four hundred forty-two".