31412421440 has 28 divisors (see below), whose sum is σ = 74800829316. Its totient is φ = 12564968448.

The previous prime is 31412421413. The next prime is 31412421451. The reversal of 31412421440 is 4412421413.

It can be written as a sum of positive squares in 2 ways, for example, as 10533327424 + 20879094016 = 102632^2 + 144496^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49081589 + ... + 49082228.

Almost surely, 2^31412421440 is an apocalyptic number.

It is an amenable number.

31412421440 is an abundant number, since it is smaller than the sum of its proper divisors (43388407876).

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

31412421440 is an equidigital number, since it uses as much as digits as its factorization.

31412421440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98163834 (or 98163824 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 31412421440 its reverse (4412421413), we get a palindrome (35824842853).

The spelling of 31412421440 in words is "thirty-one billion, four hundred twelve million, four hundred twenty-one thousand, four hundred forty".