1270381986853 has 8 divisors (see below), whose sum is σ = 1481495028800. Its totient is φ = 1088898845580.

The previous prime is 1270381986851. The next prime is 1270381986857. The reversal of 1270381986853 is 3586891830721.

It is not a de Polignac number, because 1270381986853 - 2¹ = 1270381986851 is a prime.

It is a super-2 number, since 2×1270381986853² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1270381986791 and 1270381986800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1270381986851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1851868443 + ... + 1851869128.

It is an arithmetic number, because the mean of its divisors is an integer number (185186878600).

Almost surely, 2^{1270381986853} is an apocalyptic number.

It is an amenable number.

1270381986853 is a deficient number, since it is larger than the sum of its proper divisors (211113041947).

1270381986853 is an frugal number, since it uses more digits than its factorization.

1270381986853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3703737592 (or 3703737578 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 61.

The spelling of 1270381986853 in words is "one trillion, two hundred seventy billion, three hundred eighty-one million, nine hundred eighty-six thousand, eight hundred fifty-three".