678532235875 has 32 divisors (see below), whose sum is σ = 917756251776. Its totient is φ = 497878243200.

The previous prime is 678532235867. The next prime is 678532235881. The reversal of 678532235875 is 578532235876.

It is not a de Polignac number, because 678532235875 - 2³ = 678532235867 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1074679 + ... + 1584928.

It is an arithmetic number, because the mean of its divisors is an integer number (28679882868).

Almost surely, 2^678532235875 is an apocalyptic number.

678532235875 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

678532235875 is a deficient number, since it is larger than the sum of its proper divisors (239224015901).

678532235875 is a wasteful number, since it uses less digits than its factorization.

678532235875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2659792 (or 2659782 counting only the distinct ones).

The product of its digits is 84672000, while the sum is 61.

Subtracting from 678532235875 its reverse (578532235876), we obtain a palindrome (99999999999).

The spelling of 678532235875 in words is "six hundred seventy-eight billion, five hundred thirty-two million, two hundred thirty-five thousand, eight hundred seventy-five".