402003444044155 has 8 divisors (see below), whose sum is σ = 485192596049712. Its totient is φ = 319743779770848.

The previous prime is 402003444044131. The next prime is 402003444044177. The reversal of 402003444044155 is 551440444300204.

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 402003444044155 - 2⁵ = 402003444044123 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232371932109 + ... + 232371933838.

It is an arithmetic number, because the mean of its divisors is an integer number (60649074506214).

Almost surely, 2^{402003444044155} is an apocalyptic number.

402003444044155 is a deficient number, since it is larger than the sum of its proper divisors (83189152005557).

402003444044155 is a wasteful number, since it uses less digits than its factorization.

402003444044155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464743866125.

The product of its (nonzero) digits is 614400, while the sum is 40.

Adding to 402003444044155 its reverse (551440444300204), we get a palindrome (953443888344359).

The spelling of 402003444044155 in words is "four hundred two trillion, three billion, four hundred forty-four million, forty-four thousand, one hundred fifty-five".