34155356321 has 2 divisors, whose sum is σ = 34155356322. Its totient is φ = 34155356320.

The previous prime is 34155356317. The next prime is 34155356351. The reversal of 34155356321 is 12365355143.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34130715025 + 24641296 = 184745^2 + 4964^2 .

It is a cyclic number.

It is not a de Polignac number, because 34155356321 - 2² = 34155356317 is a prime.

It is not a weakly prime, because it can be changed into another prime (34155356351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17077678160 + 17077678161.

It is an arithmetic number, because the mean of its divisors is an integer number (17077678161).

Almost surely, 2^34155356321 is an apocalyptic number.

It is an amenable number.

34155356321 is a deficient number, since it is larger than the sum of its proper divisors (1).

34155356321 is an equidigital number, since it uses as much as digits as its factorization.

34155356321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162000, while the sum is 38.

The spelling of 34155356321 in words is "thirty-four billion, one hundred fifty-five million, three hundred fifty-six thousand, three hundred twenty-one".