20492849770 has 16 divisors (see below), whose sum is σ = 38077037568. Its totient is φ = 7932715920.

The previous prime is 20492849761. The next prime is 20492849791. The reversal of 20492849770 is 7794829402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33052674 + ... + 33053293.

It is an arithmetic number, because the mean of its divisors is an integer number (2379814848).

Almost surely, 2^20492849770 is an apocalyptic number.

20492849770 is a deficient number, since it is larger than the sum of its proper divisors (17584187798).

20492849770 is a wasteful number, since it uses less digits than its factorization.

20492849770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66106005.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 20492849770 in words is "twenty billion, four hundred ninety-two million, eight hundred forty-nine thousand, seven hundred seventy".