138614614457 has 4 divisors (see below), whose sum is σ = 151215943056. Its totient is φ = 126013285860.

The previous prime is 138614614427. The next prime is 138614614477. The reversal of 138614614457 is 754416416831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 138614614457 - 2⁶ = 138614614393 is a prime.

It is a super-2 number, since 2×138614614457² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138614614417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6300664283 + ... + 6300664304.

It is an arithmetic number, because the mean of its divisors is an integer number (37803985764).

Almost surely, 2^138614614457 is an apocalyptic number.

It is an amenable number.

138614614457 is a deficient number, since it is larger than the sum of its proper divisors (12601328599).

138614614457 is a wasteful number, since it uses less digits than its factorization.

138614614457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12601328598.

The product of its digits is 1935360, while the sum is 50.

The spelling of 138614614457 in words is "one hundred thirty-eight billion, six hundred fourteen million, six hundred fourteen thousand, four hundred fifty-seven".