47917892923287 has 32 divisors (see below), whose sum is σ = 64454875106496. Its totient is φ = 31664352384000.

The previous prime is 47917892923247. The next prime is 47917892923289. The reversal of 47917892923287 is 78232929871974.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-47917892923287 is a prime.

It is a super-2 number, since 2×47917892923287² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47917892923289) 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, 228531837 + ... + 228741417.

It is an arithmetic number, because the mean of its divisors is an integer number (2014214847078).

Almost surely, 2^{47917892923287} is an apocalyptic number.

47917892923287 is a deficient number, since it is larger than the sum of its proper divisors (16536982183209).

47917892923287 is a wasteful number, since it uses less digits than its factorization.

47917892923287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211091.

The product of its digits is 1536288768, while the sum is 78.

The spelling of 47917892923287 in words is "forty-seven trillion, nine hundred seventeen billion, eight hundred ninety-two million, nine hundred twenty-three thousand, two hundred eighty-seven".