3656179897829 has 2 divisors, whose sum is σ = 3656179897830. Its totient is φ = 3656179897828.

The previous prime is 3656179897757. The next prime is 3656179897861. The reversal of 3656179897829 is 9287989716563.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3448040472100 + 208139425729 = 1856890^2 + 456223^2 .

It is a cyclic number.

It is not a de Polignac number, because 3656179897829 - 2¹⁶ = 3656179832293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3656179897129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1828089948914 + 1828089948915.

It is an arithmetic number, because the mean of its divisors is an integer number (1828089948915).

Almost surely, 2^{3656179897829} is an apocalyptic number.

It is an amenable number.

3656179897829 is a deficient number, since it is larger than the sum of its proper divisors (1).

3656179897829 is an equidigital number, since it uses as much as digits as its factorization.

3656179897829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2469035520, while the sum is 80.

The spelling of 3656179897829 in words is "three trillion, six hundred fifty-six billion, one hundred seventy-nine million, eight hundred ninety-seven thousand, eight hundred twenty-nine".