2758825512979 has 4 divisors (see below), whose sum is σ = 2778673178680. Its totient is φ = 2738977847280.

The previous prime is 2758825512973. The next prime is 2758825513013. The reversal of 2758825512979 is 9792155288572.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2758825512979 - 2²⁷ = 2758691295251 is a prime.

It is a super-4 number, since 4×2758825512979⁴ (a number of 51 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2758825512973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9923832642 + ... + 9923832919.

It is an arithmetic number, because the mean of its divisors is an integer number (694668294670).

Almost surely, 2^{2758825512979} is an apocalyptic number.

2758825512979 is a deficient number, since it is larger than the sum of its proper divisors (19847665701).

2758825512979 is a wasteful number, since it uses less digits than its factorization.

2758825512979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19847665700.

The product of its digits is 254016000, while the sum is 70.

The spelling of 2758825512979 in words is "two trillion, seven hundred fifty-eight billion, eight hundred twenty-five million, five hundred twelve thousand, nine hundred seventy-nine".