47397780028 has 24 divisors (see below), whose sum is σ = 83514950064. Its totient is φ = 23536713600.

The previous prime is 47397779983. The next prime is 47397780029. The reversal of 47397780028 is 82008779374.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47397780029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 507951 + ... + 593977.

It is an arithmetic number, because the mean of its divisors is an integer number (3479789586).

Almost surely, 2^47397780028 is an apocalyptic number.

It is an amenable number.

47397780028 is a deficient number, since it is larger than the sum of its proper divisors (36117170036).

47397780028 is a wasteful number, since it uses less digits than its factorization.

47397780028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86973 (or 86971 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 55.

The spelling of 47397780028 in words is "forty-seven billion, three hundred ninety-seven million, seven hundred eighty thousand, twenty-eight".