406284426887 has 4 divisors (see below), whose sum is σ = 408058594920. Its totient is φ = 404510258856.

The previous prime is 406284426881. The next prime is 406284426917. The reversal of 406284426887 is 788624482604.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 406284426887 - 2³⁸ = 131406519943 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 (406284426881) 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, 887083673 + ... + 887084130.

It is an arithmetic number, because the mean of its divisors is an integer number (102014648730).

Almost surely, 2^406284426887 is an apocalyptic number.

406284426887 is a deficient number, since it is larger than the sum of its proper divisors (1774168033).

406284426887 is a wasteful number, since it uses less digits than its factorization.

406284426887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774168032.

The product of its (nonzero) digits is 33030144, while the sum is 59.

The spelling of 406284426887 in words is "four hundred six billion, two hundred eighty-four million, four hundred twenty-six thousand, eight hundred eighty-seven".