20412799730 has 64 divisors (see below), whose sum is σ = 38351715840. Its totient is φ = 7815585024.

The previous prime is 20412799711. The next prime is 20412799733. The reversal of 20412799730 is 3799721402.

It is not an unprimeable number, because it can be changed into a prime (20412799733) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9264809 + ... + 9267011.

It is an arithmetic number, because the mean of its divisors is an integer number (599245560).

Almost surely, 2^20412799730 is an apocalyptic number.

20412799730 is a deficient number, since it is larger than the sum of its proper divisors (17938916110).

20412799730 is a wasteful number, since it uses less digits than its factorization.

20412799730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643.

The product of its (nonzero) digits is 190512, while the sum is 44.

The spelling of 20412799730 in words is "twenty billion, four hundred twelve million, seven hundred ninety-nine thousand, seven hundred thirty".