20442464699 has 8 divisors (see below), whose sum is σ = 21623478432. Its totient is φ = 19285801920.

The previous prime is 20442464683. The next prime is 20442464729. The reversal of 20442464699 is 99646424402.

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

It is a cyclic number.

It is not a de Polignac number, because 20442464699 - 2⁴ = 20442464683 is a prime.

It is a super-2 number, since 2×20442464699² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20442466699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6086012 + ... + 6089369.

It is an arithmetic number, because the mean of its divisors is an integer number (2702934804).

Almost surely, 2^20442464699 is an apocalyptic number.

20442464699 is a deficient number, since it is larger than the sum of its proper divisors (1181013733).

20442464699 is a wasteful number, since it uses less digits than its factorization.

20442464699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12175477.

The product of its (nonzero) digits is 2985984, while the sum is 50.

The spelling of 20442464699 in words is "twenty billion, four hundred forty-two million, four hundred sixty-four thousand, six hundred ninety-nine".