9091010001 has 16 divisors (see below), whose sum is σ = 12514157568. Its totient is φ = 5865984000.

The previous prime is 9091009973. The next prime is 9091010017. The reversal of 9091010001 is 1000101909.

It is not a de Polignac number, because 9091010001 - 2⁶ = 9091009937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9091010001.

It is not an unprimeable number, because it can be changed into a prime (9091010051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193200 + ... + 235601.

It is an arithmetic number, because the mean of its divisors is an integer number (782134848).

Almost surely, 2^9091010001 is an apocalyptic number.

It is an amenable number.

9091010001 is a deficient number, since it is larger than the sum of its proper divisors (3423147567).

9091010001 is a wasteful number, since it uses less digits than its factorization.

9091010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429032.

The product of its (nonzero) digits is 81, while the sum is 21.

The square root of 9091010001 is about 95346.7881000718. The cubic root of 9091010001 is about 2087.0717446081.

The spelling of 9091010001 in words is "nine billion, ninety-one million, ten thousand, one".