212761867796 has 12 divisors (see below), whose sum is σ = 394235225748. Its totient is φ = 100123231872.

The previous prime is 212761867763. The next prime is 212761867811. The reversal of 212761867796 is 697768167212.

It can be written as a sum of positive squares in 2 ways, for example, as 159811255696 + 52950612100 = 399764^2 + 230110^2 .

It is a super-2 number, since 2×212761867796² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (62) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1564425431 + ... + 1564425566.

It is an arithmetic number, because the mean of its divisors is an integer number (32852935479).

Almost surely, 2^212761867796 is an apocalyptic number.

It is an amenable number.

212761867796 is a deficient number, since it is larger than the sum of its proper divisors (181473357952).

212761867796 is a wasteful number, since it uses less digits than its factorization.

212761867796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3128851018 (or 3128851016 counting only the distinct ones).

The product of its digits is 21337344, while the sum is 62.

The spelling of 212761867796 in words is "two hundred twelve billion, seven hundred sixty-one million, eight hundred sixty-seven thousand, seven hundred ninety-six".