1005626006461 has 4 divisors (see below), whose sum is σ = 1005646237024. Its totient is φ = 1005605775900.

The previous prime is 1005626006453. The next prime is 1005626006467. The reversal of 1005626006461 is 1646006265001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1005626006461 - 2³ = 1005626006453 is a prime.

It is a super-2 number, since 2×1005626006461² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1005626006461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005626006467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10040535 + ... + 10140196.

It is an arithmetic number, because the mean of its divisors is an integer number (251411559256).

Almost surely, 2^{1005626006461} is an apocalyptic number.

It is an amenable number.

1005626006461 is a deficient number, since it is larger than the sum of its proper divisors (20230563).

1005626006461 is an equidigital number, since it uses as much as digits as its factorization.

1005626006461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20230562.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 1005626006461 in words is "one trillion, five billion, six hundred twenty-six million, six thousand, four hundred sixty-one".