34540021493 has 2 divisors, whose sum is σ = 34540021494. Its totient is φ = 34540021492.

The previous prime is 34540021469. The next prime is 34540021501. The reversal of 34540021493 is 39412004543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20029891729 + 14510129764 = 141527^2 + 120458^2 .

It is a cyclic number.

It is not a de Polignac number, because 34540021493 - 2⁸ = 34540021237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34540021433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17270010746 + 17270010747.

It is an arithmetic number, because the mean of its divisors is an integer number (17270010747).

Almost surely, 2^34540021493 is an apocalyptic number.

It is an amenable number.

34540021493 is a deficient number, since it is larger than the sum of its proper divisors (1).

34540021493 is an equidigital number, since it uses as much as digits as its factorization.

34540021493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 34540021493 in words is "thirty-four billion, five hundred forty million, twenty-one thousand, four hundred ninety-three".