4394693702721 has 64 divisors (see below), whose sum is σ = 7081351970816. Its totient is φ = 2371580467200.

The previous prime is 4394693702699. The next prime is 4394693702753. The reversal of 4394693702721 is 1272073964934.

It is not a de Polignac number, because 4394693702721 - 2⁶ = 4394693702657 is a prime.

It is a super-2 number, since 2×4394693702721² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4394693702771) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4607601 + ... + 5478993.

It is an arithmetic number, because the mean of its divisors is an integer number (110646124544).

Almost surely, 2^{4394693702721} is an apocalyptic number.

It is an amenable number.

4394693702721 is a deficient number, since it is larger than the sum of its proper divisors (2686658268095).

4394693702721 is a wasteful number, since it uses less digits than its factorization.

4394693702721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871622.

The product of its (nonzero) digits is 13716864, while the sum is 57.

The spelling of 4394693702721 in words is "four trillion, three hundred ninety-four billion, six hundred ninety-three million, seven hundred two thousand, seven hundred twenty-one".