227679643820 has 24 divisors (see below), whose sum is σ = 480630544128. Its totient is φ = 90595040000.

The previous prime is 227679643783. The next prime is 227679643897. The reversal of 227679643820 is 28346976722.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29797181 + ... + 29804820.

It is an arithmetic number, because the mean of its divisors is an integer number (20026272672).

Almost surely, 2^227679643820 is an apocalyptic number.

227679643820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

227679643820 is an abundant number, since it is smaller than the sum of its proper divisors (252950900308).

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

227679643820 is a wasteful number, since it uses less digits than its factorization.

227679643820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59602201 (or 59602199 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 56.

The spelling of 227679643820 in words is "two hundred twenty-seven billion, six hundred seventy-nine million, six hundred forty-three thousand, eight hundred twenty".