1079952781399 has 4 divisors (see below), whose sum is σ = 1080155290536. Its totient is φ = 1079750272264.

The previous prime is 1079952781367. The next prime is 1079952781423. The reversal of 1079952781399 is 9931872599701.

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 1079952781399 - 2⁵ = 1079952781367 is a prime.

It is a super-3 number, since 3×1079952781399³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1079952781339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101246569 + ... + 101257234.

It is an arithmetic number, because the mean of its divisors is an integer number (270038822634).

Almost surely, 2^{1079952781399} is an apocalyptic number.

1079952781399 is a deficient number, since it is larger than the sum of its proper divisors (202509137).

1079952781399 is an equidigital number, since it uses as much as digits as its factorization.

1079952781399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202509136.

The product of its (nonzero) digits is 77157360, while the sum is 70.

The spelling of 1079952781399 in words is "one trillion, seventy-nine billion, nine hundred fifty-two million, seven hundred eighty-one thousand, three hundred ninety-nine".