213277948466 has 32 divisors (see below), whose sum is σ = 350664769728. Its totient is φ = 96482563840.

The previous prime is 213277948453. The next prime is 213277948469. The reversal of 213277948466 is 664849772312.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (213277948469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12257825 + ... + 12275211.

It is an arithmetic number, because the mean of its divisors is an integer number (10958274054).

Almost surely, 2^213277948466 is an apocalyptic number.

213277948466 is a deficient number, since it is larger than the sum of its proper divisors (137386821262).

213277948466 is a wasteful number, since it uses less digits than its factorization.

213277948466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20026.

The product of its digits is 24385536, while the sum is 59.

The spelling of 213277948466 in words is "two hundred thirteen billion, two hundred seventy-seven million, nine hundred forty-eight thousand, four hundred sixty-six".