47439221760 has 528 divisors, whose sum is σ = 191016738432. Its totient is φ = 10661068800.

The previous prime is 47439221743. The next prime is 47439221783. The reversal of 47439221760 is 6712293474.

47439221760 is a `hidden beast` number, since 47 + 4 + 392 + 217 + 6 + 0 = 666.

It is a super-2 number, since 2×47439221760² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19674955 + ... + 19677365.

Almost surely, 2^47439221760 is an apocalyptic number.

47439221760 is a gapful number since it is divisible by the number (40) 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 47439221760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95508369216).

47439221760 is an abundant number, since it is smaller than the sum of its proper divisors (143577516672).

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

47439221760 is a wasteful number, since it uses less digits than its factorization.

47439221760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510 (or 2489 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 47439221760 in words is "forty-seven billion, four hundred thirty-nine million, two hundred twenty-one thousand, seven hundred sixty".