2857531078 has 4 divisors (see below), whose sum is σ = 4286296620. Its totient is φ = 1428765538.

The previous prime is 2857531057. The next prime is 2857531091. The reversal of 2857531078 is 8701357582.

2857531078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714382768 + ... + 714382771.

It is an arithmetic number, because the mean of its divisors is an integer number (1071574155).

Almost surely, 2^2857531078 is an apocalyptic number.

2857531078 is a deficient number, since it is larger than the sum of its proper divisors (1428765542).

2857531078 is a wasteful number, since it uses less digits than its factorization.

2857531078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428765541.

The product of its (nonzero) digits is 470400, while the sum is 46.

The square root of 2857531078 is about 53455.8797327291. The cubic root of 2857531078 is about 1419.0476782713.

The spelling of 2857531078 in words is "two billion, eight hundred fifty-seven million, five hundred thirty-one thousand, seventy-eight".