402400102054544 has 40 divisors (see below), whose sum is σ = 854844886925568. Its totient is φ = 181980664503680.

The previous prime is 402400102054463. The next prime is 402400102054553. The reversal of 402400102054544 is 445450201004204.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5802920192 + ... + 5802989535.

Almost surely, 2^{402400102054544} is an apocalyptic number.

402400102054544 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

402400102054544 is an abundant number, since it is smaller than the sum of its proper divisors (452444784871024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402400102054544 is a wasteful number, since it uses less digits than its factorization.

402400102054544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11605909943 (or 11605909937 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 35.

Adding to 402400102054544 its reverse (445450201004204), we get a palindrome (847850303058748).

The spelling of 402400102054544 in words is "four hundred two trillion, four hundred billion, one hundred two million, fifty-four thousand, five hundred forty-four".