31368415740 has 96 divisors (see below), whose sum is σ = 90355535424. Its totient is φ = 8125286400.

The previous prime is 31368415739. The next prime is 31368415787. The reversal of 31368415740 is 4751486313.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31368415692 and 31368415701.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1358290 + ... + 1381190.

It is an arithmetic number, because the mean of its divisors is an integer number (941203494).

Almost surely, 2^31368415740 is an apocalyptic number.

31368415740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31368415740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45177767712).

31368415740 is an abundant number, since it is smaller than the sum of its proper divisors (58987119684).

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

31368415740 is a wasteful number, since it uses less digits than its factorization.

31368415740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23567 (or 23565 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 31368415740 in words is "thirty-one billion, three hundred sixty-eight million, four hundred fifteen thousand, seven hundred forty".