718431237252 has 36 divisors (see below), whose sum is σ = 1830334012416. Its totient is φ = 237591431280.

The previous prime is 718431237247. The next prime is 718431237253. The reversal of 718431237252 is 252732134817.

718431237252 is a `hidden beast` number, since 7 + 1 + 84 + 312 + 3 + 7 + 252 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×718431237252² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 718431237198 and 718431237207.

It is not an unprimeable number, because it can be changed into a prime (718431237253) 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 in 11 ways as a sum of consecutive naturals, for example, 78564024 + ... + 78573167.

It is an arithmetic number, because the mean of its divisors is an integer number (50842611456).

Almost surely, 2^718431237252 is an apocalyptic number.

It is an amenable number.

718431237252 is an abundant number, since it is smaller than the sum of its proper divisors (1111902775164).

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

718431237252 is a wasteful number, since it uses less digits than its factorization.

718431237252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157137328 (or 157137323 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The spelling of 718431237252 in words is "seven hundred eighteen billion, four hundred thirty-one million, two hundred thirty-seven thousand, two hundred fifty-two".