47474531568 has 200 divisors, whose sum is σ = 145686019248. Its totient is φ = 14873683968.

The previous prime is 47474531563. The next prime is 47474531579. The reversal of 47474531568 is 86513547474.

47474531568 is a `hidden beast` number, since 4 + 7 + 4 + 7 + 45 + 31 + 568 = 666.

It is a super-2 number, since 2×47474531568² (a number of 22 digits) contains 22 as substring.

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 (47474531561) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 32011755 + ... + 32013237.

Almost surely, 2^47474531568 is an apocalyptic number.

47474531568 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47474531568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72843009624).

47474531568 is an abundant number, since it is smaller than the sum of its proper divisors (98211487680).

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

47474531568 is a wasteful number, since it uses less digits than its factorization.

47474531568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2973 (or 2958 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 54.

The spelling of 47474531568 in words is "forty-seven billion, four hundred seventy-four million, five hundred thirty-one thousand, five hundred sixty-eight".