90940179073 has 2 divisors, whose sum is σ = 90940179074. Its totient is φ = 90940179072.

The previous prime is 90940179037. The next prime is 90940179097. The reversal of 90940179073 is 37097104909.

It is a happy number.

Together with previous prime (90940179037) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71787556624 + 19152622449 = 267932^2 + 138393^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90940179073 is a prime.

It is not a weakly prime, because it can be changed into another prime (90940129073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45470089536 + 45470089537.

It is an arithmetic number, because the mean of its divisors is an integer number (45470089537).

Almost surely, 2^90940179073 is an apocalyptic number.

It is an amenable number.

90940179073 is a deficient number, since it is larger than the sum of its proper divisors (1).

90940179073 is an equidigital number, since it uses as much as digits as its factorization.

90940179073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 428652, while the sum is 49.

The spelling of 90940179073 in words is "ninety billion, nine hundred forty million, one hundred seventy-nine thousand, seventy-three".