1464305100021 has 20 divisors (see below), whose sum is σ = 2187676710252. Its totient is φ = 976088268288.

The previous prime is 1464305099977. The next prime is 1464305100053. The reversal of 1464305100021 is 1200015034641.

It is a happy number.

1464305100021 is a `hidden beast` number, since 1 + 4 + 643 + 0 + 5 + 10 + 0 + 0 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1192712988996 + 271592111025 = 1092114^2 + 521145^2 .

It is not a de Polignac number, because 1464305100021 - 2³¹ = 1462157616373 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1464305000021) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 372226 + ... + 1751331.

Almost surely, 2^{1464305100021} is an apocalyptic number.

It is an amenable number.

1464305100021 is a deficient number, since it is larger than the sum of its proper divisors (723371610231).

1464305100021 is an equidigital number, since it uses as much as digits as its factorization.

1464305100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132082 (or 2132073 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The spelling of 1464305100021 in words is "one trillion, four hundred sixty-four billion, three hundred five million, one hundred thousand, twenty-one".