1260040438275 has 48 divisors (see below), whose sum is σ = 2104515302400. Its totient is φ = 665200936960.

The previous prime is 1260040438271. The next prime is 1260040438337. The reversal of 1260040438275 is 5728340400621.

It is not a de Polignac number, because 1260040438275 - 2² = 1260040438271 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1260040438271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2783011 + ... + 3203939.

It is an arithmetic number, because the mean of its divisors is an integer number (43844068800).

Almost surely, 2^{1260040438275} is an apocalyptic number.

1260040438275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1260040438275 is a deficient number, since it is larger than the sum of its proper divisors (844474864125).

1260040438275 is a wasteful number, since it uses less digits than its factorization.

1260040438275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421348 (or 421343 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

Adding to 1260040438275 its reverse (5728340400621), we get a palindrome (6988380838896).

The spelling of 1260040438275 in words is "one trillion, two hundred sixty billion, forty million, four hundred thirty-eight thousand, two hundred seventy-five".