1464254464621 has 4 divisors (see below), whose sum is σ = 1576889423452. Its totient is φ = 1351619505792.

The previous prime is 1464254464619. The next prime is 1464254464633. The reversal of 1464254464621 is 1264644524641.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 470713999396 + 993540465225 = 686086^2 + 996765^2 .

It is a cyclic number.

It is not a de Polignac number, because 1464254464621 - 2¹ = 1464254464619 is a prime.

It is a super-2 number, since 2×1464254464621² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1464254464681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56317479396 + ... + 56317479421.

It is an arithmetic number, because the mean of its divisors is an integer number (394222355863).

Almost surely, 2^{1464254464621} is an apocalyptic number.

It is an amenable number.

1464254464621 is a deficient number, since it is larger than the sum of its proper divisors (112634958831).

1464254464621 is a wasteful number, since it uses less digits than its factorization.

1464254464621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112634958830.

The product of its digits is 4423680, while the sum is 49.

The spelling of 1464254464621 in words is "one trillion, four hundred sixty-four billion, two hundred fifty-four million, four hundred sixty-four thousand, six hundred twenty-one".