31284985413 has 32 divisors (see below), whose sum is σ = 45839250432. Its totient is φ = 18822003200.

The previous prime is 31284985373. The next prime is 31284985421. The reversal of 31284985413 is 31458948213.

It is not a de Polignac number, because 31284985413 - 2⁶ = 31284985349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31284905413) 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, 2638408 + ... + 2650238.

It is an arithmetic number, because the mean of its divisors is an integer number (1432476576).

Almost surely, 2^31284985413 is an apocalyptic number.

31284985413 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31284985413 is a deficient number, since it is larger than the sum of its proper divisors (14554265019).

31284985413 is a wasteful number, since it uses less digits than its factorization.

31284985413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12425.

The product of its digits is 829440, while the sum is 48.

The spelling of 31284985413 in words is "thirty-one billion, two hundred eighty-four million, nine hundred eighty-five thousand, four hundred thirteen".