1004060642251 has 4 divisors (see below), whose sum is σ = 1004549714272. Its totient is φ = 1003571570232.

The previous prime is 1004060642239. The next prime is 1004060642261. The reversal of 1004060642251 is 1522460604001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1004060642251 - 2²³ = 1004052253643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1004060642231) 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 3 ways as a sum of consecutive naturals, for example, 244532931 + ... + 244537036.

It is an arithmetic number, because the mean of its divisors is an integer number (251137428568).

Almost surely, 2^{1004060642251} is an apocalyptic number.

1004060642251 is a deficient number, since it is larger than the sum of its proper divisors (489072021).

1004060642251 is an equidigital number, since it uses as much as digits as its factorization.

1004060642251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489072020.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 1004060642251 in words is "one trillion, four billion, sixty million, six hundred forty-two thousand, two hundred fifty-one".