10405453510421 has 8 divisors (see below), whose sum is σ = 11017900684440. Its totient is φ = 9793046522368.

The previous prime is 10405453510369. The next prime is 10405453510433. The reversal of 10405453510421 is 12401535450401.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2032306848100 + 8373146662321 = 1425590^2 + 2893639^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10405453510421 - 2¹⁸ = 10405453248277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10405453510021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9512576 + ... + 10549881.

It is an arithmetic number, because the mean of its divisors is an integer number (1377237585555).

Almost surely, 2^{10405453510421} is an apocalyptic number.

It is an amenable number.

10405453510421 is a deficient number, since it is larger than the sum of its proper divisors (612447174019).

10405453510421 is a wasteful number, since it uses less digits than its factorization.

10405453510421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20092983.

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 10405453510421 its reverse (12401535450401), we get a palindrome (22806988960822).

The spelling of 10405453510421 in words is "ten trillion, four hundred five billion, four hundred fifty-three million, five hundred ten thousand, four hundred twenty-one".