47755302840 has 448 divisors, whose sum is σ = 190079170560. Its totient is φ = 10561985280.

The previous prime is 47755302823. The next prime is 47755302841. The reversal of 47755302840 is 4820355774.

47755302840 is a `hidden beast` number, since 4 + 7 + 75 + 530 + 2 + 8 + 40 = 666.

47755302840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×47755302840² (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 not an unprimeable number, because it can be changed into a prime (47755302841) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 6323947 + ... + 6331493.

Almost surely, 2^47755302840 is an apocalyptic number.

47755302840 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 47755302840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95039585280).

47755302840 is an abundant number, since it is smaller than the sum of its proper divisors (142323867720).

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

47755302840 is a wasteful number, since it uses less digits than its factorization.

47755302840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7614 (or 7595 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 45.

The spelling of 47755302840 in words is "forty-seven billion, seven hundred fifty-five million, three hundred two thousand, eight hundred forty".