1157644676447 has 8 divisors (see below), whose sum is σ = 1331449383456. Its totient is φ = 985946693472.

The previous prime is 1157644676423. The next prime is 1157644676527. The reversal of 1157644676447 is 7446764467511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1157644676447 - 2¹⁰ = 1157644675423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1157644676447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157644676147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526679828 + ... + 526682025.

It is an arithmetic number, because the mean of its divisors is an integer number (166431172932).

Almost surely, 2^{1157644676447} is an apocalyptic number.

1157644676447 is a deficient number, since it is larger than the sum of its proper divisors (173804707009).

1157644676447 is a wasteful number, since it uses less digits than its factorization.

1157644676447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053362017.

The product of its digits is 94832640, while the sum is 62.

The spelling of 1157644676447 in words is "one trillion, one hundred fifty-seven billion, six hundred forty-four million, six hundred seventy-six thousand, four hundred forty-seven".