212663371850 has 24 divisors (see below), whose sum is σ = 403017157260. Its totient is φ = 83460341120.

The previous prime is 212663371829. The next prime is 212663371861. The reversal of 212663371850 is 58173366212.

It can be written as a sum of positive squares in 6 ways, for example, as 161501908129 + 51161463721 = 401873^2 + 226189^2 .

It is a super-2 number, since 2×212663371850² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40122515 + ... + 40127814.

Almost surely, 2^212663371850 is an apocalyptic number.

212663371850 is a deficient number, since it is larger than the sum of its proper divisors (190353785410).

212663371850 is a wasteful number, since it uses less digits than its factorization.

212663371850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80250394 (or 80250389 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 212663371850 in words is "two hundred twelve billion, six hundred sixty-three million, three hundred seventy-one thousand, eight hundred fifty".