31428562405 has 64 divisors (see below), whose sum is σ = 42225297408. Its totient is φ = 22335160320.

The previous prime is 31428562369. The next prime is 31428562427. The reversal of 31428562405 is 50426582413.

It is not a de Polignac number, because 31428562405 - 2⁹ = 31428561893 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 72583069 + ... + 72583501.

It is an arithmetic number, because the mean of its divisors is an integer number (659770272).

Almost surely, 2^31428562405 is an apocalyptic number.

It is an amenable number.

31428562405 is a deficient number, since it is larger than the sum of its proper divisors (10796735003).

31428562405 is a wasteful number, since it uses less digits than its factorization.

31428562405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886.

The product of its (nonzero) digits is 230400, while the sum is 40.

The spelling of 31428562405 in words is "thirty-one billion, four hundred twenty-eight million, five hundred sixty-two thousand, four hundred five".