31426514406 has 128 divisors (see below), whose sum is σ = 85600281600. Its totient is φ = 8345825280.

The previous prime is 31426514389. The next prime is 31426514423. The reversal of 31426514406 is 60441562413.

It is an interprime number because it is at equal distance from previous prime (31426514389) and next prime (31426514423).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 339366 + ... + 421926.

It is an arithmetic number, because the mean of its divisors is an integer number (668752200).

Almost surely, 2^31426514406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31426514406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42800140800).

31426514406 is an abundant number, since it is smaller than the sum of its proper divisors (54173767194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31426514406 is a wasteful number, since it uses less digits than its factorization.

31426514406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82651 (or 82645 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 31426514406 in words is "thirty-one billion, four hundred twenty-six million, five hundred fourteen thousand, four hundred six".