21763620082 has 32 divisors (see below), whose sum is σ = 36629878320. Its totient is φ = 9647339520.

The previous prime is 21763620079. The next prime is 21763620121. The reversal of 21763620082 is 28002636712.

It can be written as a sum of positive squares in 8 ways, for example, as 11711351961 + 10052268121 = 108219^2 + 100261^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228753 + ... + 309604.

Almost surely, 2^21763620082 is an apocalyptic number.

21763620082 is a deficient number, since it is larger than the sum of its proper divisors (14866258238).

21763620082 is a wasteful number, since it uses less digits than its factorization.

21763620082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538446.

The product of its (nonzero) digits is 48384, while the sum is 37.

The spelling of 21763620082 in words is "twenty-one billion, seven hundred sixty-three million, six hundred twenty thousand, eighty-two".