3887023890405 has 32 divisors (see below), whose sum is σ = 6242280992640. Its totient is φ = 2065412276480.

The previous prime is 3887023890403. The next prime is 3887023890427. The reversal of 3887023890405 is 5040983207883.

It is not a de Polignac number, because 3887023890405 - 2¹ = 3887023890403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3887023890401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4085086 + ... + 4945904.

It is an arithmetic number, because the mean of its divisors is an integer number (195071281020).

Almost surely, 2^{3887023890405} is an apocalyptic number.

It is an amenable number.

3887023890405 is a deficient number, since it is larger than the sum of its proper divisors (2355257102235).

3887023890405 is a wasteful number, since it uses less digits than its factorization.

3887023890405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861941.

The product of its (nonzero) digits is 11612160, while the sum is 57.

The spelling of 3887023890405 in words is "three trillion, eight hundred eighty-seven billion, twenty-three million, eight hundred ninety thousand, four hundred five".