90742554013 has 2 divisors, whose sum is σ = 90742554014. Its totient is φ = 90742554012.

The previous prime is 90742553953. The next prime is 90742554041. The reversal of 90742554013 is 31045524709.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69420129529 + 21322424484 = 263477^2 + 146022^2 .

It is a cyclic number.

It is not a de Polignac number, because 90742554013 - 2¹⁷ = 90742422941 is a prime.

It is a super-2 number, since 2×90742554013² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90742551013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45371277006 + 45371277007.

It is an arithmetic number, because the mean of its divisors is an integer number (45371277007).

Almost surely, 2^90742554013 is an apocalyptic number.

It is an amenable number.

90742554013 is a deficient number, since it is larger than the sum of its proper divisors (1).

90742554013 is an equidigital number, since it uses as much as digits as its factorization.

90742554013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 90742554013 in words is "ninety billion, seven hundred forty-two million, five hundred fifty-four thousand, thirteen".