20121674572 has 24 divisors (see below), whose sum is σ = 37391155200. Its totient is φ = 9441880320.

The previous prime is 20121674543. The next prime is 20121674579. The reversal of 20121674572 is 27547612102.

It is not an unprimeable number, because it can be changed into a prime (20121674579) by changing a digit.

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, 400204 + ... + 447667.

It is an arithmetic number, because the mean of its divisors is an integer number (1557964800).

Almost surely, 2^20121674572 is an apocalyptic number.

It is an amenable number.

20121674572 is a deficient number, since it is larger than the sum of its proper divisors (17269480628).

20121674572 is a wasteful number, since it uses less digits than its factorization.

20121674572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848241 (or 848239 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The spelling of 20121674572 in words is "twenty billion, one hundred twenty-one million, six hundred seventy-four thousand, five hundred seventy-two".