712456654218 has 32 divisors (see below), whose sum is σ = 1510915291200. Its totient is φ = 223192323840.

The previous prime is 712456654211. The next prime is 712456654223. The reversal of 712456654218 is 812456654217.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (712456654211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4983693 + ... + 5124656.

It is an arithmetic number, because the mean of its divisors is an integer number (47216102850).

Almost surely, 2^712456654218 is an apocalyptic number.

712456654218 is an abundant number, since it is smaller than the sum of its proper divisors (798458636982).

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

712456654218 is a wasteful number, since it uses less digits than its factorization.

712456654218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10109062.

The product of its digits is 3225600, while the sum is 51.

Subtracting 712456654218 from its reverse (812456654217), we obtain a palindrome (99999999999).

The spelling of 712456654218 in words is "seven hundred twelve billion, four hundred fifty-six million, six hundred fifty-four thousand, two hundred eighteen".