402144400411 has 4 divisors (see below), whose sum is σ = 433078585072. Its totient is φ = 371210215752.

The previous prime is 402144400387. The next prime is 402144400429. The reversal of 402144400411 is 114004441204.

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

It is a cyclic number.

It is not a de Polignac number, because 402144400411 - 2⁵ = 402144400379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402144409411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15467092311 + ... + 15467092336.

It is an arithmetic number, because the mean of its divisors is an integer number (108269646268).

Almost surely, 2^402144400411 is an apocalyptic number.

402144400411 is a deficient number, since it is larger than the sum of its proper divisors (30934184661).

402144400411 is a wasteful number, since it uses less digits than its factorization.

402144400411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30934184660.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 402144400411 its reverse (114004441204), we get a palindrome (516148841615).

The spelling of 402144400411 in words is "four hundred two billion, one hundred forty-four million, four hundred thousand, four hundred eleven".