1281111283675 has 24 divisors (see below), whose sum is σ = 1723048749072. Its totient is φ = 941074560000.

The previous prime is 1281111283663. The next prime is 1281111283691. The reversal of 1281111283675 is 5763821111821.

It is not a de Polignac number, because 1281111283675 - 2²³ = 1281102895067 is a prime.

It is a super-2 number, since 2×1281111283675² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36743301 + ... + 36778150.

It is an arithmetic number, because the mean of its divisors is an integer number (71793697878).

Almost surely, 2^{1281111283675} is an apocalyptic number.

1281111283675 is a deficient number, since it is larger than the sum of its proper divisors (441937465397).

1281111283675 is a wasteful number, since it uses less digits than its factorization.

1281111283675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73521519 (or 73521514 counting only the distinct ones).

The product of its digits is 161280, while the sum is 46.

The spelling of 1281111283675 in words is "one trillion, two hundred eighty-one billion, one hundred eleven million, two hundred eighty-three thousand, six hundred seventy-five".