2578735351 has 4 divisors (see below), whose sum is σ = 2578862304. Its totient is φ = 2578608400.

The previous prime is 2578735307. The next prime is 2578735399. The reversal of 2578735351 is 1535378752.

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

It is a 4-Lehmer number, since φ(2578735351) divides (2578735351-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 2578735351 - 2¹⁹ = 2578211063 is a prime.

It is a deceptive number, since it divides R_2578735350.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2578733351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25390 + ... + 76171.

It is an arithmetic number, because the mean of its divisors is an integer number (644715576).

Almost surely, 2^2578735351 is an apocalyptic number.

2578735351 is the 25391-st decagonal number.

2578735351 is a deficient number, since it is larger than the sum of its proper divisors (126953).

2578735351 is a wasteful number, since it uses less digits than its factorization.

2578735351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126952.

The product of its digits is 882000, while the sum is 46.

The square root of 2578735351 is about 50781.2499944615. The cubic root of 2578735351 is about 1371.3098366705.

The spelling of 2578735351 in words is "two billion, five hundred seventy-eight million, seven hundred thirty-five thousand, three hundred fifty-one".