30615642526493 has 2 divisors, whose sum is σ = 30615642526494. Its totient is φ = 30615642526492.

The previous prime is 30615642526487. The next prime is 30615642526561. The reversal of 30615642526493 is 39462524651603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30167039957209 + 448602569284 = 5492453^2 + 669778^2 .

It is a cyclic number.

It is not a de Polignac number, because 30615642526493 - 2⁴ = 30615642526477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30615642526393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15307821263246 + 15307821263247.

It is an arithmetic number, because the mean of its divisors is an integer number (15307821263247).

Almost surely, 2^{30615642526493} is an apocalyptic number.

It is an amenable number.

30615642526493 is a deficient number, since it is larger than the sum of its proper divisors (1).

30615642526493 is an equidigital number, since it uses as much as digits as its factorization.

30615642526493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27993600, while the sum is 56.

The spelling of 30615642526493 in words is "thirty trillion, six hundred fifteen billion, six hundred forty-two million, five hundred twenty-six thousand, four hundred ninety-three".