93138307506 has 48 divisors (see below), whose sum is σ = 202427374968. Its totient is φ = 30949632000.

The previous prime is 93138307501. The next prime is 93138307519. The reversal of 93138307506 is 60570383139.

93138307506 is a `hidden beast` number, since 9 + 3 + 138 + 3 + 0 + 7 + 506 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 88253555625 + 4884751881 = 297075^2 + 69891^2 .

It is not an unprimeable number, because it can be changed into a prime (93138307501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16461430 + ... + 16467086.

Almost surely, 2^93138307506 is an apocalyptic number.

93138307506 is an abundant number, since it is smaller than the sum of its proper divisors (109289067462).

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

93138307506 is a wasteful number, since it uses less digits than its factorization.

93138307506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8347 (or 8344 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The spelling of 93138307506 in words is "ninety-three billion, one hundred thirty-eight million, three hundred seven thousand, five hundred six".