454639075812 has 36 divisors (see below), whose sum is σ = 1149363149116. Its totient is φ = 151528345920.

The previous prime is 454639075801. The next prime is 454639075823. The reversal of 454639075812 is 218570936454.

It is a happy number.

454639075812 is a `hidden beast` number, since 4 + 54 + 6 + 3 + 9 + 0 + 7 + 581 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (454639075801) and next prime (454639075823).

It can be written as a sum of positive squares in 2 ways, for example, as 289523629476 + 165115446336 = 538074^2 + 406344^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 441703 + ... + 1050894.

It is a 1-persistent number, because it is pandigital, but 2⋅454639075812 = 909278151624 is not.

Almost surely, 2^454639075812 is an apocalyptic number.

It is an amenable number.

454639075812 is an abundant number, since it is smaller than the sum of its proper divisors (694724073304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

454639075812 is a wasteful number, since it uses less digits than its factorization.

454639075812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501068 (or 1501063 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 454639075812 in words is "four hundred fifty-four billion, six hundred thirty-nine million, seventy-five thousand, eight hundred twelve".