1000005091001 has 8 divisors (see below), whose sum is σ = 1147309900800. Its totient is φ = 853812016128.

The previous prime is 1000005090923. The next prime is 1000005091009. The reversal of 1000005091001 is 1001905000001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1000005091001 - 2²⁶ = 999937982137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1000005091009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277931801 + ... + 277935398.

It is an arithmetic number, because the mean of its divisors is an integer number (143413737600).

Almost surely, 2^{1000005091001} is an apocalyptic number.

It is an amenable number.

1000005091001 is a deficient number, since it is larger than the sum of its proper divisors (147304809799).

1000005091001 is an equidigital number, since it uses as much as digits as its factorization.

1000005091001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555867463.

The product of its (nonzero) digits is 45, while the sum is 17.

The spelling of 1000005091001 in words is "one trillion, five million, ninety-one thousand, one".