20573854490 has 32 divisors (see below), whose sum is σ = 42364957824. Its totient is φ = 7046959680.

The previous prime is 20573854487. The next prime is 20573854501. The reversal of 20573854490 is 9445837502.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72464 + ... + 215403.

It is an arithmetic number, because the mean of its divisors is an integer number (1323904932).

Almost surely, 2^20573854490 is an apocalyptic number.

20573854490 is an abundant number, since it is smaller than the sum of its proper divisors (21791103334).

20573854490 is a wasteful number, since it uses less digits than its factorization.

20573854490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288902.

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 20573854490 in words is "twenty billion, five hundred seventy-three million, eight hundred fifty-four thousand, four hundred ninety".