31454331426 has 128 divisors (see below), whose sum is σ = 81736704000. Its totient is φ = 8780908032.

The previous prime is 31454331409. The next prime is 31454331449. The reversal of 31454331426 is 62413345413.

31454331426 is a `hidden beast` number, since 31 + 454 + 33 + 142 + 6 = 666.

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, 2891185 + ... + 2902043.

It is an arithmetic number, because the mean of its divisors is an integer number (638568000).

Almost surely, 2^31454331426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31454331426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40868352000).

31454331426 is an abundant number, since it is smaller than the sum of its proper divisors (50282372574).

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

31454331426 is a wasteful number, since it uses less digits than its factorization.

31454331426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11053 (or 11047 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

Adding to 31454331426 its reverse (62413345413), we get a palindrome (93867676839).

The spelling of 31454331426 in words is "thirty-one billion, four hundred fifty-four million, three hundred thirty-one thousand, four hundred twenty-six".