2858078491 has 2 divisors, whose sum is σ = 2858078492. Its totient is φ = 2858078490.

The previous prime is 2858078467. The next prime is 2858078513. The reversal of 2858078491 is 1948708582.

It is a happy number.

2858078491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2858078491 - 2⁵ = 2858078459 is a prime.

It is a super-2 number, since 2×2858078491² = 16337225321433674162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2858078791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1429039245 + 1429039246.

It is an arithmetic number, because the mean of its divisors is an integer number (1429039246).

Almost surely, 2^2858078491 is an apocalyptic number.

2858078491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2858078491 is an equidigital number, since it uses as much as digits as its factorization.

2858078491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1290240, while the sum is 52.

The square root of 2858078491 is about 53460.9997194216. Note that the first 3 decimals coincide. The cubic root of 2858078491 is about 1419.1382874402.

The spelling of 2858078491 in words is "two billion, eight hundred fifty-eight million, seventy-eight thousand, four hundred ninety-one".