47897865769 has 32 divisors (see below), whose sum is σ = 55505608704. Its totient is φ = 40988185920.

The previous prime is 47897865703. The next prime is 47897865787. The reversal of 47897865769 is 96756879874.

It is not a de Polignac number, because 47897865769 - 2⁷ = 47897865641 is a prime.

It is a super-2 number, since 2×47897865769² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47897865695 and 47897865704.

It is not an unprimeable number, because it can be changed into a prime (47897865269) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1430914 + ... + 1464004.

It is an arithmetic number, because the mean of its divisors is an integer number (1734550272).

Almost surely, 2^47897865769 is an apocalyptic number.

It is an amenable number.

47897865769 is a deficient number, since it is larger than the sum of its proper divisors (7607742935).

47897865769 is a wasteful number, since it uses less digits than its factorization.

47897865769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33277.

The product of its digits is 1280240640, while the sum is 76.

The spelling of 47897865769 in words is "forty-seven billion, eight hundred ninety-seven million, eight hundred sixty-five thousand, seven hundred sixty-nine".