212770183794 has 64 divisors (see below), whose sum is σ = 513831859200. Its totient is φ = 57377775168.

The previous prime is 212770183793. The next prime is 212770183799. The reversal of 212770183794 is 497381077212.

It is a super-2 number, since 2×212770183794² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212770183793) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 280932 + ... + 710255.

It is an arithmetic number, because the mean of its divisors is an integer number (8028622800).

Almost surely, 2^212770183794 is an apocalyptic number.

212770183794 is an abundant number, since it is smaller than the sum of its proper divisors (301061675406).

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

212770183794 is a wasteful number, since it uses less digits than its factorization.

212770183794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991487.

The product of its (nonzero) digits is 1185408, while the sum is 51.

The spelling of 212770183794 in words is "two hundred twelve billion, seven hundred seventy million, one hundred eighty-three thousand, seven hundred ninety-four".