1275435956079 has 12 divisors (see below), whose sum is σ = 1842429665232. Its totient is φ = 850229121600.

The previous prime is 1275435956077. The next prime is 1275435956087. The reversal of 1275435956079 is 9706595345721.

1275435956079 is a `hidden beast` number, since 1 + 2 + 75 + 435 + 9 + 5 + 60 + 79 = 666.

It is not a de Polignac number, because 1275435956079 - 2¹ = 1275435956077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1275435956071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4994827 + ... + 5243964.

It is an arithmetic number, because the mean of its divisors is an integer number (153535805436).

Almost surely, 2^{1275435956079} is an apocalyptic number.

1275435956079 is a deficient number, since it is larger than the sum of its proper divisors (566993709153).

1275435956079 is a wasteful number, since it uses less digits than its factorization.

1275435956079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10252638 (or 10252635 counting only the distinct ones).

The product of its (nonzero) digits is 71442000, while the sum is 63.

The spelling of 1275435956079 in words is "one trillion, two hundred seventy-five billion, four hundred thirty-five million, nine hundred fifty-six thousand, seventy-nine".