402336536621 has 4 divisors (see below), whose sum is σ = 410896888512. Its totient is φ = 393776184732.

The previous prime is 402336536597. The next prime is 402336536681. The reversal of 402336536621 is 126635633204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 402336536621 - 2⁶ = 402336536557 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 (402336536681) 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, 4280175875 + ... + 4280175968.

It is an arithmetic number, because the mean of its divisors is an integer number (102724222128).

Almost surely, 2^402336536621 is an apocalyptic number.

It is an amenable number.

402336536621 is a deficient number, since it is larger than the sum of its proper divisors (8560351891).

402336536621 is an equidigital number, since it uses as much as digits as its factorization.

402336536621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8560351890.

The product of its (nonzero) digits is 466560, while the sum is 41.

The spelling of 402336536621 in words is "four hundred two billion, three hundred thirty-six million, five hundred thirty-six thousand, six hundred twenty-one".