2578351357 has 4 divisors (see below), whose sum is σ = 2714054080. Its totient is φ = 2442648636.

The previous prime is 2578351309. The next prime is 2578351403. The reversal of 2578351357 is 7531538752.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2578351357 - 2¹⁹ = 2577827069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2578351157) 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, 67851333 + ... + 67851370.

It is an arithmetic number, because the mean of its divisors is an integer number (678513520).

Almost surely, 2^2578351357 is an apocalyptic number.

It is an amenable number.

2578351357 is a deficient number, since it is larger than the sum of its proper divisors (135702723).

2578351357 is a wasteful number, since it uses less digits than its factorization.

2578351357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135702722.

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

The square root of 2578351357 is about 50777.4689897005. The cubic root of 2578351357 is about 1371.2417670140.

The spelling of 2578351357 in words is "two billion, five hundred seventy-eight million, three hundred fifty-one thousand, three hundred fifty-seven".