420151420452142 has 64 divisors (see below), whose sum is σ = 644278903027200. Its totient is φ = 205431534000000.

The previous prime is 420151420452121. The next prime is 420151420452149. The reversal of 420151420452142 is 241254024151024.

It is a happy number.

It is a super-2 number, since 2×420151420452142² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420151420452149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130118121784 + ... + 130118125012.

It is an arithmetic number, because the mean of its divisors is an integer number (10066857859800).

Almost surely, 2^{420151420452142} is an apocalyptic number.

420151420452142 is a deficient number, since it is larger than the sum of its proper divisors (224127482575058).

420151420452142 is a wasteful number, since it uses less digits than its factorization.

420151420452142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7753.

The product of its (nonzero) digits is 102400, while the sum is 37.

The spelling of 420151420452142 in words is "four hundred twenty trillion, one hundred fifty-one billion, four hundred twenty million, four hundred fifty-two thousand, one hundred forty-two".