47311754440 has 32 divisors (see below), whose sum is σ = 106458841080. Its totient is φ = 18923387392.

The previous prime is 47311754419. The next prime is 47311754447. The reversal of 47311754440 is 4445711374.

It can be written as a sum of positive squares in 4 ways, for example, as 46890437764 + 421316676 = 216542^2 + 20526^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 47311754393 and 47311754402.

It is not an unprimeable number, because it can be changed into a prime (47311754447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 712914 + ... + 776446.

Almost surely, 2^47311754440 is an apocalyptic number.

47311754440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47311754440 is an abundant number, since it is smaller than the sum of its proper divisors (59147086640).

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

47311754440 is a wasteful number, since it uses less digits than its factorization.

47311754440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82161 (or 82157 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 40.

The spelling of 47311754440 in words is "forty-seven billion, three hundred eleven million, seven hundred fifty-four thousand, four hundred forty".