20764046830 has 32 divisors (see below), whose sum is σ = 40257360000. Its totient is φ = 7685489952.

The previous prime is 20764046827. The next prime is 20764046839. The reversal of 20764046830 is 3864046702.

It is a happy number.

It is a super-2 number, since 2×20764046830² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20764046839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1262580 + ... + 1278919.

It is an arithmetic number, because the mean of its divisors is an integer number (1258042500).

Almost surely, 2^20764046830 is an apocalyptic number.

20764046830 is a deficient number, since it is larger than the sum of its proper divisors (19493313170).

20764046830 is a wasteful number, since it uses less digits than its factorization.

20764046830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2541568.

The product of its (nonzero) digits is 193536, while the sum is 40.

The spelling of 20764046830 in words is "twenty billion, seven hundred sixty-four million, forty-six thousand, eight hundred thirty".