20472674372 has 6 divisors (see below), whose sum is σ = 35827180158. Its totient is φ = 10236337184.

The previous prime is 20472674359. The next prime is 20472674389. The reversal of 20472674372 is 27347627402.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 18652457476 + 1820216896 = 136574^2 + 42664^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2559084293 + ... + 2559084300.

It is an arithmetic number, because the mean of its divisors is an integer number (5971196693).

Almost surely, 2^20472674372 is an apocalyptic number.

It is an amenable number.

20472674372 is a deficient number, since it is larger than the sum of its proper divisors (15354505786).

20472674372 is a wasteful number, since it uses less digits than its factorization.

20472674372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5118168597 (or 5118168595 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 44.

The spelling of 20472674372 in words is "twenty billion, four hundred seventy-two million, six hundred seventy-four thousand, three hundred seventy-two".