2579278152068 has 12 divisors (see below), whose sum is σ = 4513979661660. Its totient is φ = 1289569677312.

The previous prime is 2579278152067. The next prime is 2579278152089. The reversal of 2579278152068 is 8602518729752.

It can be written as a sum of positive squares in 2 ways, for example, as 1610061529924 + 969216622144 = 1268882^2 + 984488^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2579278152068.

It is not an unprimeable number, because it can be changed into a prime (2579278152067) 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, 17266013 + ... + 17414756.

It is an arithmetic number, because the mean of its divisors is an integer number (376164971805).

Almost surely, 2^{2579278152068} is an apocalyptic number.

It is an amenable number.

2579278152068 is a deficient number, since it is larger than the sum of its proper divisors (1934701509592).

2579278152068 is a wasteful number, since it uses less digits than its factorization.

2579278152068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34699366 (or 34699364 counting only the distinct ones).

The product of its (nonzero) digits is 33868800, while the sum is 62.

The spelling of 2579278152068 in words is "two trillion, five hundred seventy-nine billion, two hundred seventy-eight million, one hundred fifty-two thousand, sixty-eight".