865072543254 has 16 divisors (see below), whose sum is σ = 1731410754048. Its totient is φ = 288146569832.

The previous prime is 865072543219. The next prime is 865072543277. The reversal of 865072543254 is 452345270568.

It is a junction number, because it is equal to n+sod(n) for n = 865072543197 and 865072543206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52727262 + ... + 52743665.

It is an arithmetic number, because the mean of its divisors is an integer number (108213172128).

Almost surely, 2^865072543254 is an apocalyptic number.

865072543254 is an abundant number, since it is smaller than the sum of its proper divisors (866338210794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

865072543254 is a wasteful number, since it uses less digits than its factorization.

865072543254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105472299.

The product of its (nonzero) digits is 8064000, while the sum is 51.

The spelling of 865072543254 in words is "eight hundred sixty-five billion, seventy-two million, five hundred forty-three thousand, two hundred fifty-four".