47244678021 has 24 divisors (see below), whose sum is σ = 69152254080. Its totient is φ = 31077012096.

The previous prime is 47244678011. The next prime is 47244678037. The reversal of 47244678021 is 12087644274.

47244678021 is a `hidden beast` number, since 472 + 44 + 67 + 80 + 2 + 1 = 666.

It is not a de Polignac number, because 47244678021 - 2⁶ = 47244677957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47244678011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1082790 + ... + 1125576.

It is an arithmetic number, because the mean of its divisors is an integer number (2881343920).

Almost surely, 2^47244678021 is an apocalyptic number.

It is an amenable number.

47244678021 is a deficient number, since it is larger than the sum of its proper divisors (21907576059).

47244678021 is a wasteful number, since it uses less digits than its factorization.

47244678021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44425 (or 44422 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 45.

The spelling of 47244678021 in words is "forty-seven billion, two hundred forty-four million, six hundred seventy-eight thousand, twenty-one".