147279789749 has 2 divisors, whose sum is σ = 147279789750. Its totient is φ = 147279789748.

The previous prime is 147279789733. The next prime is 147279789779. The reversal of 147279789749 is 947987972741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88160298724 + 59119491025 = 296918^2 + 243145^2 .

It is a cyclic number.

It is not a de Polignac number, because 147279789749 - 2⁴ = 147279789733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147279789719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73639894874 + 73639894875.

It is an arithmetic number, because the mean of its divisors is an integer number (73639894875).

Almost surely, 2^147279789749 is an apocalyptic number.

It is an amenable number.

147279789749 is a deficient number, since it is larger than the sum of its proper divisors (1).

147279789749 is an equidigital number, since it uses as much as digits as its factorization.

147279789749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 448084224, while the sum is 74.

The spelling of 147279789749 in words is "one hundred forty-seven billion, two hundred seventy-nine million, seven hundred eighty-nine thousand, seven hundred forty-nine".