720686468854 has 32 divisors (see below), whose sum is σ = 1233588372480. Its totient is φ = 312575736000.

The previous prime is 720686468809. The next prime is 720686468869. The reversal of 720686468854 is 458864686027.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1534222 + ... + 1948129.

It is an arithmetic number, because the mean of its divisors is an integer number (38549636640).

Almost surely, 2^720686468854 is an apocalyptic number.

720686468854 is a deficient number, since it is larger than the sum of its proper divisors (512901903626).

720686468854 is a wasteful number, since it uses less digits than its factorization.

720686468854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3482796.

The product of its (nonzero) digits is 123863040, while the sum is 64.

The spelling of 720686468854 in words is "seven hundred twenty billion, six hundred eighty-six million, four hundred sixty-eight thousand, eight hundred fifty-four".