1538147465629 has 4 divisors (see below), whose sum is σ = 1538164455840. Its totient is φ = 1538130475420.

The previous prime is 1538147465539. The next prime is 1538147465669. The reversal of 1538147465629 is 9265647418351.

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 not a de Polignac number, because 1538147465629 - 2⁷ = 1538147465501 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 (1538147465669) 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, 8358577 + ... + 8540614.

It is an arithmetic number, because the mean of its divisors is an integer number (384541113960).

Almost surely, 2^{1538147465629} is an apocalyptic number.

It is an amenable number.

1538147465629 is a deficient number, since it is larger than the sum of its proper divisors (16990211).

1538147465629 is an equidigital number, since it uses as much as digits as its factorization.

1538147465629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16990210.

The product of its digits is 43545600, while the sum is 61.

The spelling of 1538147465629 in words is "one trillion, five hundred thirty-eight billion, one hundred forty-seven million, four hundred sixty-five thousand, six hundred twenty-nine".