38509497143 has 16 divisors (see below), whose sum is σ = 42687432480. Its totient is φ = 34720463232.

The previous prime is 38509497109. The next prime is 38509497203. The reversal of 38509497143 is 34179490583.

It is not a de Polignac number, because 38509497143 - 2⁶ = 38509497079 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 (38509499143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109346 + ... + 298287.

It is an arithmetic number, because the mean of its divisors is an integer number (2667964530).

Almost surely, 2^38509497143 is an apocalyptic number.

38509497143 is a deficient number, since it is larger than the sum of its proper divisors (4177935337).

38509497143 is an equidigital number, since it uses as much as digits as its factorization.

38509497143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407715 (or 407689 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 38509497143 in words is "thirty-eight billion, five hundred nine million, four hundred ninety-seven thousand, one hundred forty-three".