38387505243473 has 4 divisors (see below), whose sum is σ = 38503479579888. Its totient is φ = 38271530907060.

The previous prime is 38387505243449. The next prime is 38387505243533. The reversal of 38387505243473 is 37434250578383.

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-38387505243473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38387505246473) 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, 57987167711 + ... + 57987168372.

It is an arithmetic number, because the mean of its divisors is an integer number (9625869894972).

Almost surely, 2^{38387505243473} is an apocalyptic number.

It is an amenable number.

38387505243473 is a deficient number, since it is larger than the sum of its proper divisors (115974336415).

38387505243473 is a wasteful number, since it uses less digits than its factorization.

38387505243473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115974336414.

The product of its (nonzero) digits is 203212800, while the sum is 62.

The spelling of 38387505243473 in words is "thirty-eight trillion, three hundred eighty-seven billion, five hundred five million, two hundred forty-three thousand, four hundred seventy-three".