1275059116812 has 288 divisors, whose sum is σ = 3376400315904. Its totient is φ = 372203320320.

The previous prime is 1275059116763. The next prime is 1275059116817. The reversal of 1275059116812 is 2186119505721.

It is a super-2 number, since 2×1275059116812² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1275059116817) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2878237063 + ... + 2878237505.

It is an arithmetic number, because the mean of its divisors is an integer number (11723612208).

Almost surely, 2^{1275059116812} is an apocalyptic number.

1275059116812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1275059116812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1688200157952).

1275059116812 is an abundant number, since it is smaller than the sum of its proper divisors (2101341199092).

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

1275059116812 is a wasteful number, since it uses less digits than its factorization.

1275059116812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 48.

The spelling of 1275059116812 in words is "one trillion, two hundred seventy-five billion, fifty-nine million, one hundred sixteen thousand, eight hundred twelve".