718408223772 has 48 divisors (see below), whose sum is σ = 1766150131200. Its totient is φ = 226833824448.

The previous prime is 718408223711. The next prime is 718408223773. The reversal of 718408223772 is 277322804817.

It is a happy number.

It is a super-3 number, since 3×718408223772³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (718408223773) 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 15 ways as a sum of consecutive naturals, for example, 12607147 + ... + 12664002.

It is an arithmetic number, because the mean of its divisors is an integer number (36794794400).

Almost surely, 2^718408223772 is an apocalyptic number.

It is an amenable number.

718408223772 is an abundant number, since it is smaller than the sum of its proper divisors (1047741907428).

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

718408223772 is a wasteful number, since it uses less digits than its factorization.

718408223772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25271282 (or 25271280 counting only the distinct ones).

The product of its (nonzero) digits is 2107392, while the sum is 51.

The spelling of 718408223772 in words is "seven hundred eighteen billion, four hundred eight million, two hundred twenty-three thousand, seven hundred seventy-two".