47427231640 has 16 divisors (see below), whose sum is σ = 106711271280. Its totient is φ = 18970892640.

The previous prime is 47427231637. The next prime is 47427231659. The reversal of 47427231640 is 4613272474.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 1185680791 = 47427231640 / (4 + 7 + 4 + 2 + 7 + 2 + 3 + 1 + 6 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 47427231593 and 47427231602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592840356 + ... + 592840435.

It is an arithmetic number, because the mean of its divisors is an integer number (6669454455).

Almost surely, 2^47427231640 is an apocalyptic number.

47427231640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47427231640 is an abundant number, since it is smaller than the sum of its proper divisors (59284039640).

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

47427231640 is a wasteful number, since it uses less digits than its factorization.

47427231640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185680802 (or 1185680798 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 40.

The spelling of 47427231640 in words is "forty-seven billion, four hundred twenty-seven million, two hundred thirty-one thousand, six hundred forty".