678880032627 has 18 divisors (see below), whose sum is σ = 955359644268. Its totient is φ = 428749211088.

The previous prime is 678880032599. The next prime is 678880032647. The reversal of 678880032627 is 726230088876.

It is a happy number.

It is not a de Polignac number, because 678880032627 - 2⁶ = 678880032563 is a prime.

It is a super-2 number, since 2×678880032627² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (678880032647) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 27102553 + ... + 27127589.

Almost surely, 2^678880032627 is an apocalyptic number.

678880032627 is a deficient number, since it is larger than the sum of its proper divisors (276479611641).

678880032627 is an frugal number, since it uses more digits than its factorization.

678880032627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50115 (or 25059 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 57.

The spelling of 678880032627 in words is "six hundred seventy-eight billion, eight hundred eighty million, thirty-two thousand, six hundred twenty-seven".