90427761373 has 2 divisors, whose sum is σ = 90427761374. Its totient is φ = 90427761372.

The previous prime is 90427761349. The next prime is 90427761419. The reversal of 90427761373 is 37316772409.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61324083769 + 29103677604 = 247637^2 + 170598^2 .

It is a cyclic number.

It is not a de Polignac number, because 90427761373 - 2¹³ = 90427753181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90427768373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45213880686 + 45213880687.

It is an arithmetic number, because the mean of its divisors is an integer number (45213880687).

Almost surely, 2^90427761373 is an apocalyptic number.

It is an amenable number.

90427761373 is a deficient number, since it is larger than the sum of its proper divisors (1).

90427761373 is an equidigital number, since it uses as much as digits as its factorization.

90427761373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1333584, while the sum is 49.

The spelling of 90427761373 in words is "ninety billion, four hundred twenty-seven million, seven hundred sixty-one thousand, three hundred seventy-three".