20514449242 has 16 divisors (see below), whose sum is σ = 35179663680. Its totient is φ = 8788897728.

The previous prime is 20514449239. The next prime is 20514449251. The reversal of 20514449242 is 24294441502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208143 + ... + 290434.

It is an arithmetic number, because the mean of its divisors is an integer number (2198728980).

Almost surely, 2^20514449242 is an apocalyptic number.

20514449242 is a deficient number, since it is larger than the sum of its proper divisors (14665214438).

20514449242 is a wasteful number, since it uses less digits than its factorization.

20514449242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501525.

The product of its (nonzero) digits is 92160, while the sum is 37.

The spelling of 20514449242 in words is "twenty billion, five hundred fourteen million, four hundred forty-nine thousand, two hundred forty-two".