420142543413250 has 64 divisors (see below), whose sum is σ = 915824677906944. Its totient is φ = 141330968750400.

The previous prime is 420142543413233. The next prime is 420142543413253. The reversal of 420142543413250 is 52314345241024.

It is not an unprimeable number, because it can be changed into a prime (420142543413253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2264826622 + ... + 2265012121.

It is an arithmetic number, because the mean of its divisors is an integer number (14309760592296).

Almost surely, 2^{420142543413250} is an apocalyptic number.

420142543413250 is an abundant number, since it is smaller than the sum of its proper divisors (495682134493694).

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

420142543413250 is a wasteful number, since it uses less digits than its factorization.

420142543413250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4529838820 (or 4529838810 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 40.

Adding to 420142543413250 its reverse (52314345241024), we get a palindrome (472456888654274).

The spelling of 420142543413250 in words is "four hundred twenty trillion, one hundred forty-two billion, five hundred forty-three million, four hundred thirteen thousand, two hundred fifty".