677231622145 has 12 divisors (see below), whose sum is σ = 880000381116. Its totient is φ = 500109504960.

The previous prime is 677231622139. The next prime is 677231622161. The reversal of 677231622145 is 541226132776.

It can be written as a sum of positive squares in 6 ways, for example, as 155195026704 + 522036595441 = 393948^2 + 722521^2 .

It is not a de Polignac number, because 677231622145 - 2²³ = 677223233537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 677231622095 and 677231622104.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 400727926 + ... + 400729615.

It is an arithmetic number, because the mean of its divisors is an integer number (73333365093).

Almost surely, 2^677231622145 is an apocalyptic number.

677231622145 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

677231622145 is a deficient number, since it is larger than the sum of its proper divisors (202768758971).

677231622145 is a wasteful number, since it uses less digits than its factorization.

677231622145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801457572 (or 801457559 counting only the distinct ones).

The product of its digits is 846720, while the sum is 46.

The spelling of 677231622145 in words is "six hundred seventy-seven billion, two hundred thirty-one million, six hundred twenty-two thousand, one hundred forty-five".