1452720101868 has 72 divisors (see below), whose sum is σ = 4227380250912. Its totient is φ = 412033220352.

The previous prime is 1452720101831. The next prime is 1452720101947. The reversal of 1452720101868 is 8681010272541.

1452720101868 is a `hidden beast` number, since 1 + 452 + 7 + 2 + 0 + 10 + 186 + 8 = 666.

It is a super-2 number, since 2×1452720101868² (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, 21004755 + ... + 21073802.

It is an arithmetic number, because the mean of its divisors is an integer number (58713614596).

Almost surely, 2^{1452720101868} is an apocalyptic number.

1452720101868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1452720101868 is an abundant number, since it is smaller than the sum of its proper divisors (2774660149044).

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

1452720101868 is a wasteful number, since it uses less digits than its factorization.

1452720101868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42078711 (or 42078706 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The spelling of 1452720101868 in words is "one trillion, four hundred fifty-two billion, seven hundred twenty million, one hundred one thousand, eight hundred sixty-eight".