20273840071772 has 24 divisors (see below), whose sum is σ = 40554845627520. Its totient is φ = 8687253141360.

The previous prime is 20273840071739. The next prime is 20273840071777. The reversal of 20273840071772 is 27717004837202.

It is a super-2 number, since 2×20273840071772² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20273840071772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20273840071777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63816254 + ... + 64133157.

It is an arithmetic number, because the mean of its divisors is an integer number (1689785234480).

Almost surely, 2^{20273840071772} is an apocalyptic number.

It is an amenable number.

20273840071772 is an abundant number, since it is smaller than the sum of its proper divisors (20281005555748).

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

20273840071772 is a wasteful number, since it uses less digits than its factorization.

20273840071772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127955081 (or 127955079 counting only the distinct ones).

The product of its (nonzero) digits is 1843968, while the sum is 50.

The spelling of 20273840071772 in words is "twenty trillion, two hundred seventy-three billion, eight hundred forty million, seventy-one thousand, seven hundred seventy-two".