854240720261 has 8 divisors (see below), whose sum is σ = 904502609280. Its totient is φ = 803980212928.

The previous prime is 854240720239. The next prime is 854240720297. The reversal of 854240720261 is 162027042458.

It is a happy number.

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 854240720261 - 2³⁰ = 853166978437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854540720261) 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, 1100420 + ... + 1708626.

It is an arithmetic number, because the mean of its divisors is an integer number (113062826160).

Almost surely, 2^854240720261 is an apocalyptic number.

It is an amenable number.

854240720261 is a deficient number, since it is larger than the sum of its proper divisors (50261889019).

854240720261 is a wasteful number, since it uses less digits than its factorization.

854240720261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690843.

The product of its (nonzero) digits is 215040, while the sum is 41.

The spelling of 854240720261 in words is "eight hundred fifty-four billion, two hundred forty million, seven hundred twenty thousand, two hundred sixty-one".