678273125782 has 16 divisors (see below), whose sum is σ = 1166266789632. Its totient is φ = 289810267560.

The previous prime is 678273125767. The next prime is 678273125809. The reversal of 678273125782 is 287521372876.

It is a super-2 number, since 2×678273125782² (a number of 24 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 7 ways as a sum of consecutive naturals, for example, 73179778 + ... + 73189045.

It is an arithmetic number, because the mean of its divisors is an integer number (72891674352).

Almost surely, 2^678273125782 is an apocalyptic number.

678273125782 is a deficient number, since it is larger than the sum of its proper divisors (487993663850).

678273125782 is a wasteful number, since it uses less digits than its factorization.

678273125782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146369163.

The product of its digits is 15805440, while the sum is 58.

The spelling of 678273125782 in words is "six hundred seventy-eight billion, two hundred seventy-three million, one hundred twenty-five thousand, seven hundred eighty-two".