453440671507 has 4 divisors (see below), whose sum is σ = 453738401640. Its totient is φ = 453142941376.

The previous prime is 453440671459. The next prime is 453440671553. The reversal of 453440671507 is 705176044354.

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 453440671507 - 2⁷ = 453440671379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (453440671597) 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, 148862782 + ... + 148865827.

It is an arithmetic number, because the mean of its divisors is an integer number (113434600410).

Almost surely, 2^453440671507 is an apocalyptic number.

453440671507 is a deficient number, since it is larger than the sum of its proper divisors (297730133).

453440671507 is a wasteful number, since it uses less digits than its factorization.

453440671507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297730132.

The product of its (nonzero) digits is 1411200, while the sum is 46.

The spelling of 453440671507 in words is "four hundred fifty-three billion, four hundred forty million, six hundred seventy-one thousand, five hundred seven".