47742488661 has 16 divisors (see below), whose sum is σ = 72757605888. Its totient is φ = 27278742000.

The previous prime is 47742488641. The next prime is 47742488683. The reversal of 47742488661 is 16688424774.

It is not a de Polignac number, because 47742488661 - 2¹³ = 47742480469 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47742488641) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 118186 + ... + 330836.

It is an arithmetic number, because the mean of its divisors is an integer number (4547350368).

Almost surely, 2^47742488661 is an apocalyptic number.

It is an amenable number.

47742488661 is a deficient number, since it is larger than the sum of its proper divisors (25015117227).

47742488661 is a wasteful number, since it uses less digits than its factorization.

47742488661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223352.

The product of its digits is 14450688, while the sum is 57.

The spelling of 47742488661 in words is "forty-seven billion, seven hundred forty-two million, four hundred eighty-eight thousand, six hundred sixty-one".