1271988168093 has 24 divisors (see below), whose sum is σ = 1853882854200. Its totient is φ = 840348472320.

The previous prime is 1271988168079. The next prime is 1271988168103. The reversal of 1271988168093 is 3908618891721.

It can be written as a sum of positive squares in 4 ways, for example, as 46499315769 + 1225488852324 = 215637^2 + 1107018^2 .

It is not a de Polignac number, because 1271988168093 - 2¹⁶ = 1271988102557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1271988168093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271988168023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6226233 + ... + 6427281.

It is an arithmetic number, because the mean of its divisors is an integer number (77245118925).

Almost surely, 2^{1271988168093} is an apocalyptic number.

It is an amenable number.

1271988168093 is a deficient number, since it is larger than the sum of its proper divisors (581894686107).

1271988168093 is a wasteful number, since it uses less digits than its factorization.

1271988168093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207389 (or 207386 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 63.

The spelling of 1271988168093 in words is "one trillion, two hundred seventy-one billion, nine hundred eighty-eight million, one hundred sixty-eight thousand, ninety-three".