4000721577422 has 8 divisors (see below), whose sum is σ = 6016198443816. Its totient is φ = 1995322096152.

The previous prime is 4000721577367. The next prime is 4000721577449. The reversal of 4000721577422 is 2247751270004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 4000721577422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2519345288 + ... + 2519346875.

It is an arithmetic number, because the mean of its divisors is an integer number (752024805477).

Almost surely, 2^{4000721577422} is an apocalyptic number.

4000721577422 is a deficient number, since it is larger than the sum of its proper divisors (2015476866394).

4000721577422 is a wasteful number, since it uses less digits than its factorization.

4000721577422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5038692562.

The product of its (nonzero) digits is 219520, while the sum is 41.

The spelling of 4000721577422 in words is "four trillion, seven hundred twenty-one million, five hundred seventy-seven thousand, four hundred twenty-two".