38887405513 has 4 divisors (see below), whose sum is σ = 42422624208. Its totient is φ = 35352186820.

The previous prime is 38887405451. The next prime is 38887405519. The reversal of 38887405513 is 31550478883.

It is a happy number.

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 38887405513 - 2¹³ = 38887397321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38887405519) 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, 1767609331 + ... + 1767609352.

It is an arithmetic number, because the mean of its divisors is an integer number (10605656052).

Almost surely, 2^38887405513 is an apocalyptic number.

It is an amenable number.

38887405513 is a deficient number, since it is larger than the sum of its proper divisors (3535218695).

38887405513 is a wasteful number, since it uses less digits than its factorization.

38887405513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3535218694.

The product of its (nonzero) digits is 3225600, while the sum is 52.

The spelling of 38887405513 in words is "thirty-eight billion, eight hundred eighty-seven million, four hundred five thousand, five hundred thirteen".