145069927128977 has 4 divisors (see below), whose sum is σ = 145070688174576. Its totient is φ = 145069166083380.

The previous prime is 145069927128967. The next prime is 145069927128979. The reversal of 145069927128977 is 779821729960541.

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.

It is a cyclic number.

It is not a de Polignac number, because 145069927128977 - 2²⁴ = 145069910351761 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145069927128898 and 145069927128907.

It is not an unprimeable number, because it can be changed into a prime (145069927128979) 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, 380236799 + ... + 380618132.

It is an arithmetic number, because the mean of its divisors is an integer number (36267672043644).

Almost surely, 2^{145069927128977} is an apocalyptic number.

It is an amenable number.

145069927128977 is a deficient number, since it is larger than the sum of its proper divisors (761045599).

145069927128977 is an equidigital number, since it uses as much as digits as its factorization.

145069927128977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761045598.

The product of its (nonzero) digits is 960180480, while the sum is 77.

The spelling of 145069927128977 in words is "one hundred forty-five trillion, sixty-nine billion, nine hundred twenty-seven million, one hundred twenty-eight thousand, nine hundred seventy-seven".