20763349860 has 48 divisors (see below), whose sum is σ = 63422597952. Its totient is φ = 5033539200.

The previous prime is 20763349819. The next prime is 20763349861. The reversal of 20763349860 is 6894336702.

It is a super-2 number, since 2×20763349860² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20763349861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15729151 + ... + 15730470.

It is an arithmetic number, because the mean of its divisors is an integer number (1321304124).

Almost surely, 2^20763349860 is an apocalyptic number.

20763349860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20763349860 is an abundant number, since it is smaller than the sum of its proper divisors (42659248092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20763349860 is a wasteful number, since it uses less digits than its factorization.

20763349860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31459644 (or 31459642 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 48.

The spelling of 20763349860 in words is "twenty billion, seven hundred sixty-three million, three hundred forty-nine thousand, eight hundred sixty".