145806956867 has 16 divisors (see below), whose sum is σ = 171310228992. Its totient is φ = 122346527520.

The previous prime is 145806956863. The next prime is 145806956873. The reversal of 145806956867 is 768659608541.

It is a cyclic number.

It is not a de Polignac number, because 145806956867 - 2² = 145806956863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145806956863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2543798 + ... + 2600484.

It is an arithmetic number, because the mean of its divisors is an integer number (10706889312).

Almost surely, 2^145806956867 is an apocalyptic number.

145806956867 is a deficient number, since it is larger than the sum of its proper divisors (25503272125).

145806956867 is a wasteful number, since it uses less digits than its factorization.

145806956867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74698.

The product of its (nonzero) digits is 87091200, while the sum is 65.

The spelling of 145806956867 in words is "one hundred forty-five billion, eight hundred six million, nine hundred fifty-six thousand, eight hundred sixty-seven".