138073913486 has 8 divisors (see below), whose sum is σ = 207150433560. Its totient is φ = 69023768968.

The previous prime is 138073913437. The next prime is 138073913491. The reversal of 138073913486 is 684319370831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6580796 + ... + 6601743.

It is an arithmetic number, because the mean of its divisors is an integer number (25893804195).

Almost surely, 2^138073913486 is an apocalyptic number.

138073913486 is a deficient number, since it is larger than the sum of its proper divisors (69076520074).

138073913486 is a wasteful number, since it uses less digits than its factorization.

138073913486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13187778.

The product of its (nonzero) digits is 2612736, while the sum is 53.

It can be divided in two parts, 13807 and 3913486, that added together give a palindrome (3927293).

The spelling of 138073913486 in words is "one hundred thirty-eight billion, seventy-three million, nine hundred thirteen thousand, four hundred eighty-six".