74315407540 has 48 divisors (see below), whose sum is σ = 176120542080. Its totient is φ = 26091927680.

The previous prime is 74315407471. The next prime is 74315407549. The reversal of 74315407540 is 4570451347.

It is a junction number, because it is equal to n+sod(n) for n = 74315407493 and 74315407502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74315407549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5817712 + ... + 5830471.

It is an arithmetic number, because the mean of its divisors is an integer number (3669177960).

Almost surely, 2^74315407540 is an apocalyptic number.

It is an amenable number.

74315407540 is an abundant number, since it is smaller than the sum of its proper divisors (101805134540).

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

74315407540 is a wasteful number, since it uses less digits than its factorization.

74315407540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11648232 (or 11648230 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 40.

Adding to 74315407540 its reverse (4570451347), we get a palindrome (78885858887).

The spelling of 74315407540 in words is "seventy-four billion, three hundred fifteen million, four hundred seven thousand, five hundred forty".