47102773221 has 12 divisors (see below), whose sum is σ = 77756959072. Its totient is φ = 26915870376.

The previous prime is 47102773217. The next prime is 47102773241. The reversal of 47102773221 is 12237720174.

It is not a de Polignac number, because 47102773221 - 2² = 47102773217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47102773241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 373831471 + ... + 373831596.

Almost surely, 2^47102773221 is an apocalyptic number.

It is an amenable number.

47102773221 is a deficient number, since it is larger than the sum of its proper divisors (30654185851).

47102773221 is a wasteful number, since it uses less digits than its factorization.

47102773221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747663080 (or 747663077 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The spelling of 47102773221 in words is "forty-seven billion, one hundred two million, seven hundred seventy-three thousand, two hundred twenty-one".