721233090704 has 40 divisors (see below), whose sum is σ = 1652085658560. Its totient is φ = 298441277568.

The previous prime is 721233090671. The next prime is 721233090727. The reversal of 721233090704 is 407090332127.

It is a super-4 number, since 4×721233090704⁴ (a number of 49 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111024014 + ... + 111030509.

It is an arithmetic number, because the mean of its divisors is an integer number (41302141464).

Almost surely, 2^721233090704 is an apocalyptic number.

It is an amenable number.

721233090704 is an abundant number, since it is smaller than the sum of its proper divisors (930852567856).

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

721233090704 is a wasteful number, since it uses less digits than its factorization.

721233090704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222054567 (or 222054561 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 38.

The spelling of 721233090704 in words is "seven hundred twenty-one billion, two hundred thirty-three million, ninety thousand, seven hundred four".