806090256139 has 8 divisors (see below), whose sum is σ = 921441182688. Its totient is φ = 690788123520.

The previous prime is 806090256109. The next prime is 806090256157. The reversal of 806090256139 is 931652090608.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 806090256139 - 2⁹ = 806090255627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 806090256092 and 806090256101.

It is not an unprimeable number, because it can be changed into a prime (806090256109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12163072 + ... + 12229165.

It is an arithmetic number, because the mean of its divisors is an integer number (115180147836).

Almost surely, 2^806090256139 is an apocalyptic number.

806090256139 is a deficient number, since it is larger than the sum of its proper divisors (115350926549).

806090256139 is a wasteful number, since it uses less digits than its factorization.

806090256139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24396965.

The product of its (nonzero) digits is 699840, while the sum is 49.

The spelling of 806090256139 in words is "eight hundred six billion, ninety million, two hundred fifty-six thousand, one hundred thirty-nine".