47456706438 has 64 divisors (see below), whose sum is σ = 109054771200. Its totient is φ = 15281403840.

The previous prime is 47456706433. The next prime is 47456706461. The reversal of 47456706438 is 83460765474.

47456706438 is a `hidden beast` number, since 4 + 74 + 567 + 0 + 6 + 4 + 3 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47456706431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 927595 + ... + 977417.

It is an arithmetic number, because the mean of its divisors is an integer number (1703980800).

Almost surely, 2^47456706438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47456706438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54527385600).

47456706438 is an abundant number, since it is smaller than the sum of its proper divisors (61598064762).

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

47456706438 is a wasteful number, since it uses less digits than its factorization.

47456706438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50434 (or 50428 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 54.

The spelling of 47456706438 in words is "forty-seven billion, four hundred fifty-six million, seven hundred six thousand, four hundred thirty-eight".