90679646041 has 4 divisors (see below), whose sum is σ = 90839013300. Its totient is φ = 90520278784.

The previous prime is 90679646021. The next prime is 90679646087. The reversal of 90679646041 is 14064697609.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14064697609 = 53 ⋅265371653.

It can be written as a sum of positive squares in 2 ways, for example, as 26216467225 + 64463178816 = 161915^2 + 253896^2 .

It is a cyclic number.

It is not a de Polignac number, because 90679646041 - 2⁵ = 90679646009 is a prime.

It is a super-2 number, since 2×90679646041² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90679646041.

It is not an unprimeable number, because it can be changed into a prime (90679646021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79682776 + ... + 79683913.

It is an arithmetic number, because the mean of its divisors is an integer number (22709753325).

Almost surely, 2^90679646041 is an apocalyptic number.

It is an amenable number.

90679646041 is a deficient number, since it is larger than the sum of its proper divisors (159367259).

90679646041 is a wasteful number, since it uses less digits than its factorization.

90679646041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159367258.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 90679646041 in words is "ninety billion, six hundred seventy-nine million, six hundred forty-six thousand, forty-one".