1453643165444 has 12 divisors (see below), whose sum is σ = 2548973490000. Its totient is φ = 725365025448.

The previous prime is 1453643165419. The next prime is 1453643165543. The reversal of 1453643165444 is 4445613463541.

It is a super-2 number, since 2×1453643165444² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1453643165392 and 1453643165401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364137074 + ... + 364141065.

It is an arithmetic number, because the mean of its divisors is an integer number (212414457500).

Almost surely, 2^{1453643165444} is an apocalyptic number.

It is an amenable number.

1453643165444 is a deficient number, since it is larger than the sum of its proper divisors (1095330324556).

1453643165444 is a wasteful number, since it uses less digits than its factorization.

1453643165444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728278642 (or 728278640 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 50.

The spelling of 1453643165444 in words is "one trillion, four hundred fifty-three billion, six hundred forty-three million, one hundred sixty-five thousand, four hundred forty-four".