47785817534 has 96 divisors (see below), whose sum is σ = 94188769920. Its totient is φ = 18001170432.

The previous prime is 47785817413. The next prime is 47785817567. The reversal of 47785817534 is 43571858774.

It is a happy number.

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 47 ways as a sum of consecutive naturals, for example, 2204702 + ... + 2226270.

It is an arithmetic number, because the mean of its divisors is an integer number (981133020).

Almost surely, 2^47785817534 is an apocalyptic number.

47785817534 is a deficient number, since it is larger than the sum of its proper divisors (46402952386).

47785817534 is a wasteful number, since it uses less digits than its factorization.

47785817534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21682 (or 21675 counting only the distinct ones).

The product of its digits is 26342400, while the sum is 59.

The spelling of 47785817534 in words is "forty-seven billion, seven hundred eighty-five million, eight hundred seventeen thousand, five hundred thirty-four".