145438796177 has 4 divisors (see below), whose sum is σ = 153093469680. Its totient is φ = 137784122676.

The previous prime is 145438796093. The next prime is 145438796189. The reversal of 145438796177 is 771697834541.

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 145438796177 - 2²⁴ = 145422018961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145438796677) 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, 3827336723 + ... + 3827336760.

It is an arithmetic number, because the mean of its divisors is an integer number (38273367420).

Almost surely, 2^145438796177 is an apocalyptic number.

It is an amenable number.

145438796177 is a deficient number, since it is larger than the sum of its proper divisors (7654673503).

145438796177 is an equidigital number, since it uses as much as digits as its factorization.

145438796177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7654673502.

The product of its digits is 35562240, while the sum is 62.

The spelling of 145438796177 in words is "one hundred forty-five billion, four hundred thirty-eight million, seven hundred ninety-six thousand, one hundred seventy-seven".