612378282855 has 16 divisors (see below), whose sum is σ = 979816986720. Its totient is φ = 326597839488.

The previous prime is 612378282853. The next prime is 612378282937. The reversal of 612378282855 is 558282873216.

612378282855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 612378282855 - 2¹ = 612378282853 is a prime.

It is a super-2 number, since 2×612378282855² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 612378282795 and 612378282804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612378282853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1411761 + ... + 1793829.

It is an arithmetic number, because the mean of its divisors is an integer number (61238561670).

Almost surely, 2^612378282855 is an apocalyptic number.

612378282855 is a deficient number, since it is larger than the sum of its proper divisors (367438703865).

612378282855 is a wasteful number, since it uses less digits than its factorization.

612378282855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488930.

The product of its digits is 12902400, while the sum is 57.

The spelling of 612378282855 in words is "six hundred twelve billion, three hundred seventy-eight million, two hundred eighty-two thousand, eight hundred fifty-five".