20512630274 has 16 divisors (see below), whose sum is σ = 31545911808. Its totient is φ = 9999025152.

The previous prime is 20512630273. The next prime is 20512630279. The reversal of 20512630274 is 47203621502.

20512630274 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 20512630274.

It is not an unprimeable number, because it can be changed into a prime (20512630273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400394 + ... + 448709.

It is an arithmetic number, because the mean of its divisors is an integer number (1971619488).

Almost surely, 2^20512630274 is an apocalyptic number.

20512630274 is a deficient number, since it is larger than the sum of its proper divisors (11033281534).

20512630274 is a wasteful number, since it uses less digits than its factorization.

20512630274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849409.

The product of its (nonzero) digits is 20160, while the sum is 32.

The spelling of 20512630274 in words is "twenty billion, five hundred twelve million, six hundred thirty thousand, two hundred seventy-four".