228547081690 has 32 divisors (see below), whose sum is σ = 411857639424. Its totient is φ = 91313818560.

The previous prime is 228547081577. The next prime is 228547081727. The reversal of 228547081690 is 96180745822.

It is a super-2 number, since 2×228547081690² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57610087 + ... + 57614053.

It is an arithmetic number, because the mean of its divisors is an integer number (12870551232).

Almost surely, 2^228547081690 is an apocalyptic number.

228547081690 is a deficient number, since it is larger than the sum of its proper divisors (183310557734).

228547081690 is a wasteful number, since it uses less digits than its factorization.

228547081690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9142.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 228547081690 in words is "two hundred twenty-eight billion, five hundred forty-seven million, eighty-one thousand, six hundred ninety".