20907450003 has 24 divisors (see below), whose sum is σ = 30927645504. Its totient is φ = 12552736240.

The previous prime is 20907449977. The next prime is 20907450013. The reversal of 20907450003 is 30005470902.

It is not a de Polignac number, because 20907450003 - 2²⁰ = 20906401427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20907450013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 230301 + ... + 307982.

It is an arithmetic number, because the mean of its divisors is an integer number (1288651896).

Almost surely, 2^20907450003 is an apocalyptic number.

20907450003 is a deficient number, since it is larger than the sum of its proper divisors (10020195501).

20907450003 is a wasteful number, since it uses less digits than its factorization.

20907450003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538415 (or 538404 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The spelling of 20907450003 in words is "twenty billion, nine hundred seven million, four hundred fifty thousand, three".