10402621455599 has 4 divisors (see below), whose sum is σ = 10402628867280. Its totient is φ = 10402614043920.

The previous prime is 10402621455593. The next prime is 10402621455623. The reversal of 10402621455599 is 99555412620401.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 10402621455599 - 2²⁴ = 10402604678383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10402621455599.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10402621455593) 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, 884582 + ... + 4646259.

It is an arithmetic number, because the mean of its divisors is an integer number (2600657216820).

Almost surely, 2^{10402621455599} is an apocalyptic number.

10402621455599 is a deficient number, since it is larger than the sum of its proper divisors (7411681).

10402621455599 is an equidigital number, since it uses as much as digits as its factorization.

10402621455599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7411680.

The product of its (nonzero) digits is 3888000, while the sum is 53.

The spelling of 10402621455599 in words is "ten trillion, four hundred two billion, six hundred twenty-one million, four hundred fifty-five thousand, five hundred ninety-nine".