1000406456453 has 4 divisors (see below), whose sum is σ = 1000431693408. Its totient is φ = 1000381219500.

The previous prime is 1000406456443. The next prime is 1000406456459. The reversal of 1000406456453 is 3546546040001.

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 1000406456453 - 2¹⁴ = 1000406440069 is a prime.

It is a super-2 number, since 2×1000406456453² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000406456459) 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, 12558923 + ... + 12638328.

It is an arithmetic number, because the mean of its divisors is an integer number (250107923352).

Almost surely, 2^{1000406456453} is an apocalyptic number.

It is an amenable number.

1000406456453 is a deficient number, since it is larger than the sum of its proper divisors (25236955).

1000406456453 is an equidigital number, since it uses as much as digits as its factorization.

1000406456453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25236954.

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 1000406456453 in words is "one trillion, four hundred six million, four hundred fifty-six thousand, four hundred fifty-three".