20473941287 has 8 divisors (see below), whose sum is σ = 21062774304. Its totient is φ = 19892609568.

The previous prime is 20473941263. The next prime is 20473941307. The reversal of 20473941287 is 78214937402.

It is a happy number.

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

It is not a de Polignac number, because 20473941287 - 2⁸ = 20473941031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20473941247) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1869788 + ... + 1880705.

It is an arithmetic number, because the mean of its divisors is an integer number (2632846788).

Almost surely, 2^20473941287 is an apocalyptic number.

20473941287 is a deficient number, since it is larger than the sum of its proper divisors (588833017).

20473941287 is a wasteful number, since it uses less digits than its factorization.

20473941287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750649.

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 20473941287 in words is "twenty billion, four hundred seventy-three million, nine hundred forty-one thousand, two hundred eighty-seven".