90754376147693 has 2 divisors, whose sum is σ = 90754376147694. Its totient is φ = 90754376147692.

The previous prime is 90754376147629. The next prime is 90754376147713. The reversal of 90754376147693 is 39674167345709.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56414565187369 + 34339810960324 = 7510963^2 + 5860018^2 .

It is a cyclic number.

It is not a de Polignac number, because 90754376147693 - 2⁶ = 90754376147629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90754376147293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45377188073846 + 45377188073847.

It is an arithmetic number, because the mean of its divisors is an integer number (45377188073847).

Almost surely, 2^{90754376147693} is an apocalyptic number.

It is an amenable number.

90754376147693 is a deficient number, since it is larger than the sum of its proper divisors (1).

90754376147693 is an equidigital number, since it uses as much as digits as its factorization.

90754376147693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720135360, while the sum is 71.

The spelling of 90754376147693 in words is "ninety trillion, seven hundred fifty-four billion, three hundred seventy-six million, one hundred forty-seven thousand, six hundred ninety-three".