20942669250 has 96 divisors (see below), whose sum is σ = 59609571840. Its totient is φ = 5290768800.

The previous prime is 20942669249. The next prime is 20942669273. The reversal of 20942669250 is 5296624902.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 20942669196 and 20942669205.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 202194 + ... + 287693.

It is an arithmetic number, because the mean of its divisors is an integer number (620933040).

Almost surely, 2^20942669250 is an apocalyptic number.

20942669250 is an abundant number, since it is smaller than the sum of its proper divisors (38666902590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20942669250 is a wasteful number, since it uses less digits than its factorization.

20942669250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489929 (or 489916 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 20942669250 in words is "twenty billion, nine hundred forty-two million, six hundred sixty-nine thousand, two hundred fifty".