31426862413 has 4 divisors (see below), whose sum is σ = 31441737628. Its totient is φ = 31411987200.

The previous prime is 31426862377. The next prime is 31426862437.

31426862413 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8302489924 + 23124372489 = 91118^2 + 152067^2 .

It is a cyclic number.

It is not a de Polignac number, because 31426862413 - 2⁹ = 31426861901 is a prime.

It is a super-2 number, since 2×31426862413² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31426862113) 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, 7434438 + ... + 7438663.

It is an arithmetic number, because the mean of its divisors is an integer number (7860434407).

Almost surely, 2^31426862413 is an apocalyptic number.

It is an amenable number.

31426862413 is a deficient number, since it is larger than the sum of its proper divisors (14875215).

31426862413 is a wasteful number, since it uses less digits than its factorization.

31426862413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14875214.

The product of its digits is 165888, while the sum is 40.

The spelling of 31426862413 in words is "thirty-one billion, four hundred twenty-six million, eight hundred sixty-two thousand, four hundred thirteen".