3861346490429 has 4 divisors (see below), whose sum is σ = 3943502798784. Its totient is φ = 3779190182076.

The previous prime is 3861346490387. The next prime is 3861346490453. The reversal of 3861346490429 is 9240946431683.

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 a de Polignac number, because none of the positive numbers 2^k-3861346490429 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 (3861346490329) 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, 41078154107 + ... + 41078154200.

It is an arithmetic number, because the mean of its divisors is an integer number (985875699696).

Almost surely, 2^{3861346490429} is an apocalyptic number.

It is an amenable number.

3861346490429 is a deficient number, since it is larger than the sum of its proper divisors (82156308355).

3861346490429 is an equidigital number, since it uses as much as digits as its factorization.

3861346490429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82156308354.

The product of its (nonzero) digits is 26873856, while the sum is 59.

The spelling of 3861346490429 in words is "three trillion, eight hundred sixty-one billion, three hundred forty-six million, four hundred ninety thousand, four hundred twenty-nine".