145834977829 has 4 divisors (see below), whose sum is σ = 145844726176. Its totient is φ = 145825229484.

The previous prime is 145834977823. The next prime is 145834977971. The reversal of 145834977829 is 928779438541.

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: 928779438541 = 463 ⋅2006003107.

It is a cyclic number.

It is not a de Polignac number, because 145834977829 - 2²³ = 145826589221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145834977823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4851699 + ... + 4881664.

It is an arithmetic number, because the mean of its divisors is an integer number (36461181544).

Almost surely, 2^145834977829 is an apocalyptic number.

It is an amenable number.

145834977829 is a deficient number, since it is larger than the sum of its proper divisors (9748347).

145834977829 is an equidigital number, since it uses as much as digits as its factorization.

145834977829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9748346.

The product of its digits is 121927680, while the sum is 67.

The spelling of 145834977829 in words is "one hundred forty-five billion, eight hundred thirty-four million, nine hundred seventy-seven thousand, eight hundred twenty-nine".