1451563075172 has 72 divisors (see below), whose sum is σ = 3115887717600. Its totient is φ = 588334150656.

The previous prime is 1451563075141. The next prime is 1451563075187. The reversal of 1451563075172 is 2715703651541.

It is a super-2 number, since 2×1451563075172² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1810979 + ... + 2486517.

It is an arithmetic number, because the mean of its divisors is an integer number (43276218300).

Almost surely, 2^{1451563075172} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1451563075172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1557943858800).

1451563075172 is an abundant number, since it is smaller than the sum of its proper divisors (1664324642428).

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

1451563075172 is a wasteful number, since it uses less digits than its factorization.

1451563075172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676153 (or 676144 counting only the distinct ones).

The product of its (nonzero) digits is 882000, while the sum is 47.

The spelling of 1451563075172 in words is "one trillion, four hundred fifty-one billion, five hundred sixty-three million, seventy-five thousand, one hundred seventy-two".