677166326434 has 8 divisors (see below), whose sum is σ = 1093884065820. Its totient is φ = 312538304496.

The previous prime is 677166326387. The next prime is 677166326443. The reversal of 677166326434 is 434623661776.

It can be written as a sum of positive squares in 2 ways, for example, as 676254588409 + 911738025 = 822347^2 + 30195^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×677166326434² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13022429329 + ... + 13022429380.

Almost surely, 2^677166326434 is an apocalyptic number.

677166326434 is a deficient number, since it is larger than the sum of its proper divisors (416717739386).

677166326434 is a wasteful number, since it uses less digits than its factorization.

677166326434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26044858724.

The product of its digits is 18289152, while the sum is 55.

The spelling of 677166326434 in words is "six hundred seventy-seven billion, one hundred sixty-six million, three hundred twenty-six thousand, four hundred thirty-four".