402253512121144 has 8 divisors (see below), whose sum is σ = 754225335227160. Its totient is φ = 201126756060568.

The previous prime is 402253512121091. The next prime is 402253512121163. The reversal of 402253512121144 is 441121215352204.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25140844507564 + ... + 25140844507579.

It is an arithmetic number, because the mean of its divisors is an integer number (94278166903395).

Almost surely, 2^{402253512121144} is an apocalyptic number.

It is an amenable number.

402253512121144 is a deficient number, since it is larger than the sum of its proper divisors (351971823106016).

402253512121144 is a wasteful number, since it uses less digits than its factorization.

402253512121144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50281689015149 (or 50281689015145 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 37.

Adding to 402253512121144 its reverse (441121215352204), we get a palindrome (843374727473348).

The spelling of 402253512121144 in words is "four hundred two trillion, two hundred fifty-three billion, five hundred twelve million, one hundred twenty-one thousand, one hundred forty-four".