138067079057 has 2 divisors, whose sum is σ = 138067079058. Its totient is φ = 138067079056.

The previous prime is 138067079023. The next prime is 138067079081. The reversal of 138067079057 is 750970760831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92510872336 + 45556206721 = 304156^2 + 213439^2 .

It is an emirp because it is prime and its reverse (750970760831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 138067079057 - 2¹⁶ = 138067013521 is a prime.

It is not a weakly prime, because it can be changed into another prime (138067079357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69033539528 + 69033539529.

It is an arithmetic number, because the mean of its divisors is an integer number (69033539529).

Almost surely, 2^138067079057 is an apocalyptic number.

It is an amenable number.

138067079057 is a deficient number, since it is larger than the sum of its proper divisors (1).

138067079057 is an equidigital number, since it uses as much as digits as its factorization.

138067079057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2222640, while the sum is 53.

The spelling of 138067079057 in words is "one hundred thirty-eight billion, sixty-seven million, seventy-nine thousand, fifty-seven".