402352545234641 has 4 divisors (see below), whose sum is σ = 402352604355492. Its totient is φ = 402352486113792.

The previous prime is 402352545234611. The next prime is 402352545234649. The reversal of 402352545234641 is 146432545253204.

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 361991682114241 + 40360863120400 = 19026079^2 + 6353020^2 .

It is a cyclic number.

It is not a de Polignac number, because 402352545234641 - 2⁴⁶ = 331983801056977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 402352545234641.

It is not an unprimeable number, because it can be changed into a prime (402352545234649) 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, 17789696 + ... + 33484001.

It is an arithmetic number, because the mean of its divisors is an integer number (100588151088873).

Almost surely, 2^{402352545234641} is an apocalyptic number.

It is an amenable number.

402352545234641 is a deficient number, since it is larger than the sum of its proper divisors (59120851).

402352545234641 is an equidigital number, since it uses as much as digits as its factorization.

402352545234641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59120850.

The product of its (nonzero) digits is 13824000, while the sum is 50.

The spelling of 402352545234641 in words is "four hundred two trillion, three hundred fifty-two billion, five hundred forty-five million, two hundred thirty-four thousand, six hundred forty-one".