90970800643 has 16 divisors (see below), whose sum is σ = 92915896320. Its totient is φ = 89039836800.

The previous prime is 90970800527. The next prime is 90970800649. The reversal of 90970800643 is 34600807909.

It is a cyclic number.

It is not a de Polignac number, because 90970800643 - 2²¹ = 90968703491 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90970800593 and 90970800602.

It is not an unprimeable number, because it can be changed into a prime (90970800649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19943083 + ... + 19947643.

It is an arithmetic number, because the mean of its divisors is an integer number (5807243520).

Almost surely, 2^90970800643 is an apocalyptic number.

90970800643 is a deficient number, since it is larger than the sum of its proper divisors (1945095677).

90970800643 is a wasteful number, since it uses less digits than its factorization.

90970800643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6018.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 90970800643 in words is "ninety billion, nine hundred seventy million, eight hundred thousand, six hundred forty-three".