228773772051 has 64 divisors (see below), whose sum is σ = 338607599616. Its totient is φ = 137378250240.

The previous prime is 228773772001. The next prime is 228773772061. The reversal of 228773772051 is 150277377822.

It is not a de Polignac number, because 228773772051 - 2¹⁰ = 228773771027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 228773771985 and 228773772003.

It is not an unprimeable number, because it can be changed into a prime (228773772001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 265090846 + ... + 265091708.

It is an arithmetic number, because the mean of its divisors is an integer number (5290743744).

Almost surely, 2^228773772051 is an apocalyptic number.

228773772051 is a deficient number, since it is larger than the sum of its proper divisors (109833827565).

228773772051 is a wasteful number, since it uses less digits than its factorization.

228773772051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433 (or 1411 counting only the distinct ones).

The product of its (nonzero) digits is 2304960, while the sum is 51.

The spelling of 228773772051 in words is "two hundred twenty-eight billion, seven hundred seventy-three million, seven hundred seventy-two thousand, fifty-one".