34688138065787 has 2 divisors, whose sum is σ = 34688138065788. Its totient is φ = 34688138065786.

The previous prime is 34688138065783. The next prime is 34688138065807. The reversal of 34688138065787 is 78756083188643.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 34688138065787 - 2² = 34688138065783 is a prime.

It is a super-2 number, since 2×34688138065787² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (34688138065783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17344069032893 + 17344069032894.

It is an arithmetic number, because the mean of its divisors is an integer number (17344069032894).

Almost surely, 2^{34688138065787} is an apocalyptic number.

34688138065787 is a deficient number, since it is larger than the sum of its proper divisors (1).

34688138065787 is an equidigital number, since it uses as much as digits as its factorization.

34688138065787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1300561920, while the sum is 74.

The spelling of 34688138065787 in words is "thirty-four trillion, six hundred eighty-eight billion, one hundred thirty-eight million, sixty-five thousand, seven hundred eighty-seven".