213314178628 has 72 divisors (see below), whose sum is σ = 398023665480. Its totient is φ = 99885864960.

The previous prime is 213314178587. The next prime is 213314178643. The reversal of 213314178628 is 826871413312.

It can be written as a sum of positive squares in 12 ways, for example, as 119738145024 + 93576033604 = 346032^2 + 305902^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37705176 + ... + 37710832.

It is an arithmetic number, because the mean of its divisors is an integer number (5528106465).

Almost surely, 2^213314178628 is an apocalyptic number.

It is an amenable number.

213314178628 is a deficient number, since it is larger than the sum of its proper divisors (184709486852).

213314178628 is a wasteful number, since it uses less digits than its factorization.

213314178628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5897 (or 5822 counting only the distinct ones).

The product of its digits is 387072, while the sum is 46.

The spelling of 213314178628 in words is "two hundred thirteen billion, three hundred fourteen million, one hundred seventy-eight thousand, six hundred twenty-eight".