1274820036812 has 72 divisors (see below), whose sum is σ = 2616900491520. Its totient is φ = 532155614400.

The previous prime is 1274820036799. The next prime is 1274820036817. The reversal of 1274820036812 is 2186300284721.

It is a super-2 number, since 2×1274820036812² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1274820036817) 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, 19594937 + ... + 19659887.

It is an arithmetic number, because the mean of its divisors is an integer number (36345840160).

Almost surely, 2^{1274820036812} is an apocalyptic number.

It is an amenable number.

1274820036812 is an abundant number, since it is smaller than the sum of its proper divisors (1342080454708).

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

1274820036812 is a wasteful number, since it uses less digits than its factorization.

1274820036812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65239 (or 65128 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 1274820036812 in words is "one trillion, two hundred seventy-four billion, eight hundred twenty million, thirty-six thousand, eight hundred twelve".