272143850981 has 16 divisors (see below), whose sum is σ = 290894060160. Its totient is φ = 253983206400.

The previous prime is 272143850969. The next prime is 272143850983. The reversal of 272143850981 is 189058341272.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-272143850981 is a prime.

It is a super-2 number, since 2×272143850981² (a number of 24 digits) contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272143850983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 770681 + ... + 1066881.

It is an arithmetic number, because the mean of its divisors is an integer number (18180878760).

Almost surely, 2^272143850981 is an apocalyptic number.

It is an amenable number.

272143850981 is a deficient number, since it is larger than the sum of its proper divisors (18750209179).

272143850981 is a wasteful number, since it uses less digits than its factorization.

272143850981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297196.

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 272143850981 in words is "two hundred seventy-two billion, one hundred forty-three million, eight hundred fifty thousand, nine hundred eighty-one".