3900144624829 has 4 divisors (see below), whose sum is σ = 3909151887676. Its totient is φ = 3891137361984.

The previous prime is 3900144624809. The next prime is 3900144624853. The reversal of 3900144624829 is 9284264410093.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 767945505625 + 3132199119204 = 876325^2 + 1769802^2 .

It is a cyclic number.

It is not a de Polignac number, because 3900144624829 - 2²³ = 3900136236221 is a prime.

It is a super-2 number, since 2×3900144624829² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3900144624809) 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, 4503630774 + ... + 4503631639.

It is an arithmetic number, because the mean of its divisors is an integer number (977287971919).

Almost surely, 2^{3900144624829} is an apocalyptic number.

It is an amenable number.

3900144624829 is a deficient number, since it is larger than the sum of its proper divisors (9007262847).

3900144624829 is an equidigital number, since it uses as much as digits as its factorization.

3900144624829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9007262846.

The product of its (nonzero) digits is 2985984, while the sum is 52.

The spelling of 3900144624829 in words is "three trillion, nine hundred billion, one hundred forty-four million, six hundred twenty-four thousand, eight hundred twenty-nine".