47785523345 has 32 divisors (see below), whose sum is σ = 67673425920. Its totient is φ = 31698501120.

The previous prime is 47785523333. The next prime is 47785523371. The reversal of 47785523345 is 54332558774.

It is a happy number.

It is not a de Polignac number, because 47785523345 - 2¹⁸ = 47785261201 is a prime.

It is a super-3 number, since 3×47785523345³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3718391 + ... + 3731219.

It is an arithmetic number, because the mean of its divisors is an integer number (2114794560).

Almost surely, 2^47785523345 is an apocalyptic number.

It is an amenable number.

47785523345 is a deficient number, since it is larger than the sum of its proper divisors (19887902575).

47785523345 is a wasteful number, since it uses less digits than its factorization.

47785523345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16305.

The product of its digits is 14112000, while the sum is 53.

The spelling of 47785523345 in words is "forty-seven billion, seven hundred eighty-five million, five hundred twenty-three thousand, three hundred forty-five".