90729343642867 has 32 divisors (see below), whose sum is σ = 96529830727680. Its totient is φ = 85097789700000.

The previous prime is 90729343642807. The next prime is 90729343642943. The reversal of 90729343642867 is 76824634392709.

It is not a de Polignac number, because 90729343642867 - 2⁷ = 90729343642739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90729343642796 and 90729343642805.

It is not an unprimeable number, because it can be changed into a prime (90729343642807) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 283068984 + ... + 283389322.

It is an arithmetic number, because the mean of its divisors is an integer number (3016557210240).

Almost surely, 2^{90729343642867} is an apocalyptic number.

90729343642867 is a deficient number, since it is larger than the sum of its proper divisors (5800487084813).

90729343642867 is a wasteful number, since it uses less digits than its factorization.

90729343642867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321375.

The product of its (nonzero) digits is 658409472, while the sum is 70.

The spelling of 90729343642867 in words is "ninety trillion, seven hundred twenty-nine billion, three hundred forty-three million, six hundred forty-two thousand, eight hundred sixty-seven".