718862842 has 4 divisors (see below), whose sum is σ = 1078294266. Its totient is φ = 359431420.

The previous prime is 718862839. The next prime is 718862849. The reversal of 718862842 is 248268817.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 248268817 = 41 ⋅6055337.

It can be written as a sum of positive squares in only one way, i.e., 595896921 + 122965921 = 24411^2 + 11089^2 .

It is a junction number, because it is equal to n+sod(n) for n = 718862792 and 718862801.

It is not an unprimeable number, because it can be changed into a prime (718862849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 179715709 + ... + 179715712.

Almost surely, 2^718862842 is an apocalyptic number.

718862842 is a deficient number, since it is larger than the sum of its proper divisors (359431424).

718862842 is a wasteful number, since it uses less digits than its factorization.

718862842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359431423.

The product of its digits is 344064, while the sum is 46.

The square root of 718862842 is about 26811.6176684660. The cubic root of 718862842 is about 895.8088427836.

The spelling of 718862842 in words is "seven hundred eighteen million, eight hundred sixty-two thousand, eight hundred forty-two".