20357250047 has 8 divisors (see below), whose sum is σ = 21722229360. Its totient is φ = 19021625280.

The previous prime is 20357250037. The next prime is 20357250077. The reversal of 20357250047 is 74005275302.

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 20357250047 - 2²⁰ = 20356201471 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20357249989 and 20357250016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20357250007) 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, 7337204 + ... + 7339977.

It is an arithmetic number, because the mean of its divisors is an integer number (2715278670).

Almost surely, 2^20357250047 is an apocalyptic number.

20357250047 is a deficient number, since it is larger than the sum of its proper divisors (1364979313).

20357250047 is a wasteful number, since it uses less digits than its factorization.

20357250047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14677273.

The product of its (nonzero) digits is 58800, while the sum is 35.

The spelling of 20357250047 in words is "twenty billion, three hundred fifty-seven million, two hundred fifty thousand, forty-seven".