20267777600472 has 32 divisors (see below), whose sum is σ = 50669554276800. Its totient is φ = 6755911163424.

The previous prime is 20267777600443. The next prime is 20267777600659. The reversal of 20267777600472 is 27400677776202.

It is a congruent number.

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, 21558783 + ... + 22479249.

It is an arithmetic number, because the mean of its divisors is an integer number (1583423571150).

Almost surely, 2^{20267777600472} is an apocalyptic number.

It is an amenable number.

20267777600472 is an abundant number, since it is smaller than the sum of its proper divisors (30401776676328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20267777600472 is a wasteful number, since it uses less digits than its factorization.

20267777600472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837935 (or 1837931 counting only the distinct ones).

The product of its (nonzero) digits is 19361664, while the sum is 57.

The spelling of 20267777600472 in words is "twenty trillion, two hundred sixty-seven billion, seven hundred seventy-seven million, six hundred thousand, four hundred seventy-two".