2855397457 has 8 divisors (see below), whose sum is σ = 3152509920. Its totient is φ = 2564540160.

The previous prime is 2855397451. The next prime is 2855397509. The reversal of 2855397457 is 7547935582.

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 2855397457 - 2¹¹ = 2855395409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2855397398 and 2855397407.

It is not an unprimeable number, because it can be changed into a prime (2855397451) 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, 1562832 + ... + 1564657.

It is an arithmetic number, because the mean of its divisors is an integer number (394063740).

Almost surely, 2^2855397457 is an apocalyptic number.

It is an amenable number.

2855397457 is a deficient number, since it is larger than the sum of its proper divisors (297112463).

2855397457 is a wasteful number, since it uses less digits than its factorization.

2855397457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3127583.

The product of its digits is 10584000, while the sum is 55.

The square root of 2855397457 is about 53435.9191649213. The cubic root of 2855397457 is about 1418.6944054962.

The spelling of 2855397457 in words is "two billion, eight hundred fifty-five million, three hundred ninety-seven thousand, four hundred fifty-seven".