7471993228 has 12 divisors (see below), whose sum is σ = 14943986512. Its totient is φ = 3202282800.

The previous prime is 7471993189. The next prime is 7471993253. The reversal of 7471993228 is 8223991747.

7471993228 is an admirable number.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133428423 + ... + 133428478.

Almost surely, 2^7471993228 is an apocalyptic number.

It is an amenable number.

7471993228 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7471993228 is a wasteful number, since it uses less digits than its factorization.

7471993228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266856912 (or 266856910 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 52.

The square root of 7471993228 is about 86440.6919685399. The cubic root of 7471993228 is about 1954.9942746587.

The spelling of 7471993228 in words is "seven billion, four hundred seventy-one million, nine hundred ninety-three thousand, two hundred twenty-eight".