47404721028 has 48 divisors (see below), whose sum is σ = 129495832704. Its totient is φ = 13213858560.

The previous prime is 47404721027. The next prime is 47404721033. The reversal of 47404721028 is 82012740474.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (47404721027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6878775 + ... + 6885662.

It is an arithmetic number, because the mean of its divisors is an integer number (2697829848).

Almost surely, 2^47404721028 is an apocalyptic number.

It is an amenable number.

47404721028 is an abundant number, since it is smaller than the sum of its proper divisors (82091111676).

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

47404721028 is a wasteful number, since it uses less digits than its factorization.

47404721028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13764492 (or 13764490 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 39.

The spelling of 47404721028 in words is "forty-seven billion, four hundred four million, seven hundred twenty-one thousand, twenty-eight".