34020872357 has 2 divisors, whose sum is σ = 34020872358. Its totient is φ = 34020872356.

The previous prime is 34020872297. The next prime is 34020872363. The reversal of 34020872357 is 75327802043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28710252481 + 5310619876 = 169441^2 + 72874^2 .

It is a cyclic number.

It is not a de Polignac number, because 34020872357 - 2³⁰ = 32947130533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34020872857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17010436178 + 17010436179.

It is an arithmetic number, because the mean of its divisors is an integer number (17010436179).

Almost surely, 2^34020872357 is an apocalyptic number.

It is an amenable number.

34020872357 is a deficient number, since it is larger than the sum of its proper divisors (1).

34020872357 is an equidigital number, since it uses as much as digits as its factorization.

34020872357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 41.

The spelling of 34020872357 in words is "thirty-four billion, twenty million, eight hundred seventy-two thousand, three hundred fifty-seven".