31368480406 has 4 divisors (see below), whose sum is σ = 47052720612. Its totient is φ = 15684240202.

The previous prime is 31368480401. The next prime is 31368480433. The reversal of 31368480406 is 60408486313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60408486313 = 7 ⋅8629783759.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31368480401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7842120100 + ... + 7842120103.

It is an arithmetic number, because the mean of its divisors is an integer number (11763180153).

Almost surely, 2^31368480406 is an apocalyptic number.

31368480406 is a deficient number, since it is larger than the sum of its proper divisors (15684240206).

31368480406 is a wasteful number, since it uses less digits than its factorization.

31368480406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15684240205.

The product of its (nonzero) digits is 331776, while the sum is 43.

The spelling of 31368480406 in words is "thirty-one billion, three hundred sixty-eight million, four hundred eighty thousand, four hundred six".