1678232407137 has 48 divisors (see below), whose sum is σ = 2798771185728. Its totient is φ = 883643504640.

The previous prime is 1678232407123. The next prime is 1678232407141. The reversal of 1678232407137 is 7317042328761.

It is a happy number.

It is not a de Polignac number, because 1678232407137 - 2⁷ = 1678232407009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 1678232407137.

It is not an unprimeable number, because it can be changed into a prime (1678232407237) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8755788 + ... + 8945405.

It is an arithmetic number, because the mean of its divisors is an integer number (58307733036).

Almost surely, 2^{1678232407137} is an apocalyptic number.

1678232407137 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1678232407137 is a deficient number, since it is larger than the sum of its proper divisors (1120538778591).

1678232407137 is a wasteful number, since it uses less digits than its factorization.

1678232407137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17701250 (or 17701237 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 51.

The spelling of 1678232407137 in words is "one trillion, six hundred seventy-eight billion, two hundred thirty-two million, four hundred seven thousand, one hundred thirty-seven".