402143250054 has 32 divisors (see below), whose sum is σ = 989891078400. Its totient is φ = 106059758112.

The previous prime is 402143250029. The next prime is 402143250071. The reversal of 402143250054 is 450052341204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368262504 + ... + 368263595.

It is an arithmetic number, because the mean of its divisors is an integer number (30934096200).

Almost surely, 2^402143250054 is an apocalyptic number.

402143250054 is an abundant number, since it is smaller than the sum of its proper divisors (587747828346).

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

402143250054 is a wasteful number, since it uses less digits than its factorization.

402143250054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736526124.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 402143250054 its reverse (450052341204), we get a palindrome (852195591258).

The spelling of 402143250054 in words is "four hundred two billion, one hundred forty-three million, two hundred fifty thousand, fifty-four".