35140620421 has 2 divisors, whose sum is σ = 35140620422. Its totient is φ = 35140620420.

The previous prime is 35140620419. The next prime is 35140620461. The reversal of 35140620421 is 12402604153.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30420243396 + 4720377025 = 174414^2 + 68705^2 .

It is a cyclic number.

It is not a de Polignac number, because 35140620421 - 2¹ = 35140620419 is a prime.

Together with 35140620419, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 35140620421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (35140620401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17570310210 + 17570310211.

It is an arithmetic number, because the mean of its divisors is an integer number (17570310211).

Almost surely, 2^35140620421 is an apocalyptic number.

It is an amenable number.

35140620421 is a deficient number, since it is larger than the sum of its proper divisors (1).

35140620421 is an equidigital number, since it uses as much as digits as its factorization.

35140620421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 35140620421 in words is "thirty-five billion, one hundred forty million, six hundred twenty thousand, four hundred twenty-one".