34620450421 has 2 divisors, whose sum is σ = 34620450422. Its totient is φ = 34620450420.

The previous prime is 34620450409. The next prime is 34620450427. The reversal of 34620450421 is 12405402643.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23827318321 + 10793132100 = 154361^2 + 103890^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34620450421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34620450427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17310225210 + 17310225211.

It is an arithmetic number, because the mean of its divisors is an integer number (17310225211).

Almost surely, 2^34620450421 is an apocalyptic number.

It is an amenable number.

34620450421 is a deficient number, since it is larger than the sum of its proper divisors (1).

34620450421 is an equidigital number, since it uses as much as digits as its factorization.

34620450421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 31.

The spelling of 34620450421 in words is "thirty-four billion, six hundred twenty million, four hundred fifty thousand, four hundred twenty-one".