854243025015 has 16 divisors (see below), whose sum is σ = 1413919490400. Its totient is φ = 439886063232.

The previous prime is 854243025007. The next prime is 854243025049. The reversal of 854243025015 is 510520342458.

854243025015 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 854243025015 - 2³ = 854243025007 is a prime.

It is a super-2 number, since 2×854243025015² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 981888100 + ... + 981888969.

It is an arithmetic number, because the mean of its divisors is an integer number (88369968150).

Almost surely, 2^854243025015 is an apocalyptic number.

854243025015 is a deficient number, since it is larger than the sum of its proper divisors (559676465385).

854243025015 is a wasteful number, since it uses less digits than its factorization.

854243025015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963777106.

The product of its (nonzero) digits is 192000, while the sum is 39.

The spelling of 854243025015 in words is "eight hundred fifty-four billion, two hundred forty-three million, twenty-five thousand, fifteen".