146874786817 has 4 divisors (see below), whose sum is σ = 160227040176. Its totient is φ = 133522533460.

The previous prime is 146874786791. The next prime is 146874786827. The reversal of 146874786817 is 718687478641.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 718687478641 = 11 ⋅65335225331.

It is a cyclic number.

It is not a de Polignac number, because 146874786817 - 2¹⁹ = 146874262529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146874786827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6676126663 + ... + 6676126684.

It is an arithmetic number, because the mean of its divisors is an integer number (40056760044).

Almost surely, 2^146874786817 is an apocalyptic number.

It is an amenable number.

146874786817 is a deficient number, since it is larger than the sum of its proper divisors (13352253359).

146874786817 is a wasteful number, since it uses less digits than its factorization.

146874786817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13352253358.

The product of its digits is 101154816, while the sum is 67.

The spelling of 146874786817 in words is "one hundred forty-six billion, eight hundred seventy-four million, seven hundred eighty-six thousand, eight hundred seventeen".