402255266895437 has 4 divisors (see below), whose sum is σ = 425917341418716. Its totient is φ = 378593192372160.

The previous prime is 402255266895323. The next prime is 402255266895467. The reversal of 402255266895437 is 734598662552204.

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 321675308925481 + 80579957969956 = 17935309^2 + 8976634^2 .

It is a cyclic number.

It is not a de Polignac number, because 402255266895437 - 2¹² = 402255266891341 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 (402255266895467) 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, 11831037261614 + ... + 11831037261647.

It is an arithmetic number, because the mean of its divisors is an integer number (106479335354679).

Almost surely, 2^{402255266895437} is an apocalyptic number.

It is an amenable number.

402255266895437 is a deficient number, since it is larger than the sum of its proper divisors (23662074523279).

402255266895437 is a wasteful number, since it uses less digits than its factorization.

402255266895437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23662074523278.

The product of its (nonzero) digits is 870912000, while the sum is 68.

The spelling of 402255266895437 in words is "four hundred two trillion, two hundred fifty-five billion, two hundred sixty-six million, eight hundred ninety-five thousand, four hundred thirty-seven".