1275699388080 has 320 divisors, whose sum is σ = 4429376501760. Its totient is φ = 301661687808.

The previous prime is 1275699388069. The next prime is 1275699388127. The reversal of 1275699388080 is 808839965721.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9049819 + ... + 9189701.

It is an arithmetic number, because the mean of its divisors is an integer number (13841801568).

Almost surely, 2^{1275699388080} is an apocalyptic number.

1275699388080 is a gapful number since it is divisible by the number (10) 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 1275699388080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2214688250880).

1275699388080 is an abundant number, since it is smaller than the sum of its proper divisors (3153677113680).

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

1275699388080 is a wasteful number, since it uses less digits than its factorization.

1275699388080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140028 (or 140022 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 66.

The spelling of 1275699388080 in words is "one trillion, two hundred seventy-five billion, six hundred ninety-nine million, three hundred eighty-eight thousand, eighty".