901279890085 has 32 divisors (see below), whose sum is σ = 1113316109568. Its totient is φ = 700126302720.

The previous prime is 901279890083. The next prime is 901279890107. The reversal of 901279890085 is 580098972109.

It is not a de Polignac number, because 901279890085 - 2¹ = 901279890083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (901279890083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49422129 + ... + 49440361.

It is an arithmetic number, because the mean of its divisors is an integer number (34791128424).

Almost surely, 2^901279890085 is an apocalyptic number.

It is an amenable number.

901279890085 is a deficient number, since it is larger than the sum of its proper divisors (212036219483).

901279890085 is a wasteful number, since it uses less digits than its factorization.

901279890085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20205.

The product of its (nonzero) digits is 3265920, while the sum is 58.

The spelling of 901279890085 in words is "nine hundred one billion, two hundred seventy-nine million, eight hundred ninety thousand, eighty-five".