856141545079 has 4 divisors (see below), whose sum is σ = 856144179184. Its totient is φ = 856138910976.

The previous prime is 856141545073. The next prime is 856141545089. The reversal of 856141545079 is 970545141658.

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

It is a cyclic number.

It is not a de Polignac number, because 856141545079 - 2¹¹ = 856141543031 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 (856141545073) 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, 747387 + ... + 1506940.

It is an arithmetic number, because the mean of its divisors is an integer number (214036044796).

Almost surely, 2^856141545079 is an apocalyptic number.

856141545079 is a deficient number, since it is larger than the sum of its proper divisors (2634105).

856141545079 is a wasteful number, since it uses less digits than its factorization.

856141545079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2634104.

The product of its (nonzero) digits is 6048000, while the sum is 55.

The spelling of 856141545079 in words is "eight hundred fifty-six billion, one hundred forty-one million, five hundred forty-five thousand, seventy-nine".