879991762945 has 8 divisors (see below), whose sum is σ = 1056186392040. Its totient is φ = 703862559360.

The previous prime is 879991762901. The next prime is 879991762963. The reversal of 879991762945 is 549267199978.

It can be written as a sum of positive squares in 4 ways, for example, as 218007749569 + 661984013376 = 466913^2 + 813624^2 .

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

It is not a de Polignac number, because 879991762945 - 2¹⁷ = 879991631873 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16326780 + ... + 16380589.

It is an arithmetic number, because the mean of its divisors is an integer number (132023299005).

Almost surely, 2^879991762945 is an apocalyptic number.

It is an amenable number.

879991762945 is a deficient number, since it is larger than the sum of its proper divisors (176194629095).

879991762945 is a wasteful number, since it uses less digits than its factorization.

879991762945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32712755.

The product of its digits is 617258880, while the sum is 76.

The spelling of 879991762945 in words is "eight hundred seventy-nine billion, nine hundred ninety-one million, seven hundred sixty-two thousand, nine hundred forty-five".