137727387985723 has 2 divisors, whose sum is σ = 137727387985724. Its totient is φ = 137727387985722.

The previous prime is 137727387985657. The next prime is 137727387985727. The reversal of 137727387985723 is 327589783727731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 137727387985723 - 2²⁵ = 137727354431291 is a prime.

It is not a weakly prime, because it can be changed into another prime (137727387985727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68863693992861 + 68863693992862.

It is an arithmetic number, because the mean of its divisors is an integer number (68863693992862).

Almost surely, 2^{137727387985723} is an apocalyptic number.

137727387985723 is a deficient number, since it is larger than the sum of its proper divisors (1).

137727387985723 is an equidigital number, since it uses as much as digits as its factorization.

137727387985723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5227649280, while the sum is 79.

The spelling of 137727387985723 in words is "one hundred thirty-seven trillion, seven hundred twenty-seven billion, three hundred eighty-seven million, nine hundred eighty-five thousand, seven hundred twenty-three".