1272215619675 has 1296 divisors, whose sum is σ = 3446355669120. Its totient is φ = 462356294400.

The previous prime is 1272215619617. The next prime is 1272215619679. The reversal of 1272215619675 is 5769165122721.

1272215619675 is a `hidden beast` number, since 1 + 2 + 7 + 2 + 2 + 1 + 561 + 9 + 6 + 75 = 666.

It is not a de Polignac number, because 1272215619675 - 2⁶ = 1272215619611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1272215619679) by changing a digit.

It is a polite number, since it can be written in 1295 ways as a sum of consecutive naturals, for example, 66958716816 + ... + 66958716834.

Almost surely, 2^{1272215619675} is an apocalyptic number.

1272215619675 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1272215619675 is an abundant number, since it is smaller than the sum of its proper divisors (2174140049445).

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

1272215619675 is a wasteful number, since it uses less digits than its factorization.

1272215619675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 58 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 54.

The spelling of 1272215619675 in words is "one trillion, two hundred seventy-two billion, two hundred fifteen million, six hundred nineteen thousand, six hundred seventy-five".