47994281669 has 8 divisors (see below), whose sum is σ = 48187191360. Its totient is φ = 47801451456.

The previous prime is 47994281653. The next prime is 47994281681. The reversal of 47994281669 is 96618249974.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47994281669 - 2⁴ = 47994281653 is a prime.

It is a super-2 number, since 2×47994281669² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47994281689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1389197 + ... + 1423325.

It is an arithmetic number, because the mean of its divisors is an integer number (6023398920).

Almost surely, 2^47994281669 is an apocalyptic number.

It is an amenable number.

47994281669 is a deficient number, since it is larger than the sum of its proper divisors (192909691).

47994281669 is a wasteful number, since it uses less digits than its factorization.

47994281669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39739.

The product of its digits is 47029248, while the sum is 65.

The spelling of 47994281669 in words is "forty-seven billion, nine hundred ninety-four million, two hundred eighty-one thousand, six hundred sixty-nine".