138468180501 has 48 divisors (see below), whose sum is σ = 230976804864. Its totient is φ = 78297013152.

The previous prime is 138468180497. The next prime is 138468180533. The reversal of 138468180501 is 105081864831.

138468180501 is a `hidden beast` number, since 1 + 3 + 8 + 4 + 68 + 1 + 80 + 501 = 666.

It is not a de Polignac number, because 138468180501 - 2² = 138468180497 is a prime.

It is a super-2 number, since 2×138468180501² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138468190501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9382210 + ... + 9396956.

It is an arithmetic number, because the mean of its divisors is an integer number (4812016768).

Almost surely, 2^138468180501 is an apocalyptic number.

It is an amenable number.

138468180501 is a deficient number, since it is larger than the sum of its proper divisors (92508624363).

138468180501 is a wasteful number, since it uses less digits than its factorization.

138468180501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16310 (or 16307 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The spelling of 138468180501 in words is "one hundred thirty-eight billion, four hundred sixty-eight million, one hundred eighty thousand, five hundred one".