47775644038 has 16 divisors (see below), whose sum is σ = 74105403120. Its totient is φ = 23087297376.

The previous prime is 47775644009. The next prime is 47775644053. The reversal of 47775644038 is 83044657774.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 47775644038.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3356433 + ... + 3370636.

It is an arithmetic number, because the mean of its divisors is an integer number (4631587695).

Almost surely, 2^47775644038 is an apocalyptic number.

47775644038 is a deficient number, since it is larger than the sum of its proper divisors (26329759082).

47775644038 is a wasteful number, since it uses less digits than its factorization.

47775644038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6727191.

The product of its (nonzero) digits is 15805440, while the sum is 55.

The spelling of 47775644038 in words is "forty-seven billion, seven hundred seventy-five million, six hundred forty-four thousand, thirty-eight".