20761303850 has 24 divisors (see below), whose sum is σ = 44132600928. Its totient is φ = 7118161200.

The previous prime is 20761303837. The next prime is 20761303859. The reversal of 20761303850 is 5830316702.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 20761303850.

It is not an unprimeable number, because it can be changed into a prime (20761303859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29658656 + ... + 29659355.

It is an arithmetic number, because the mean of its divisors is an integer number (1838858372).

Almost surely, 2^20761303850 is an apocalyptic number.

20761303850 is an abundant number, since it is smaller than the sum of its proper divisors (23371297078).

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

20761303850 is a wasteful number, since it uses less digits than its factorization.

20761303850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59318030 (or 59318025 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 20761303850 in words is "twenty billion, seven hundred sixty-one million, three hundred three thousand, eight hundred fifty".