20488270247 has 8 divisors (see below), whose sum is σ = 21839596800. Its totient is φ = 19164243384.

The previous prime is 20488270217. The next prime is 20488270333. The reversal of 20488270247 is 74207288402.

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 20488270247 - 2²² = 20484075943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20488270198 and 20488270207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20488270217) 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, 6823373 + ... + 6826374.

It is an arithmetic number, because the mean of its divisors is an integer number (2729949600).

Almost surely, 2^20488270247 is an apocalyptic number.

20488270247 is a deficient number, since it is larger than the sum of its proper divisors (1351326553).

20488270247 is a wasteful number, since it uses less digits than its factorization.

20488270247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13649845.

The product of its (nonzero) digits is 401408, while the sum is 44.

The spelling of 20488270247 in words is "twenty billion, four hundred eighty-eight million, two hundred seventy thousand, two hundred forty-seven".