42143620551 has 16 divisors (see below), whose sum is σ = 59561683200. Its totient is φ = 26414252928.

The previous prime is 42143620549. The next prime is 42143620553. The reversal of 42143620551 is 15502634124.

It is an interprime number because it is at equal distance from previous prime (42143620549) and next prime (42143620553).

It is not a de Polignac number, because 42143620551 - 2¹ = 42143620549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42143620553) 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 15 ways as a sum of consecutive naturals, for example, 402721 + ... + 496458.

It is an arithmetic number, because the mean of its divisors is an integer number (3722605200).

Almost surely, 2^42143620551 is an apocalyptic number.

42143620551 is a deficient number, since it is larger than the sum of its proper divisors (17418062649).

42143620551 is a wasteful number, since it uses less digits than its factorization.

42143620551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900118.

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 42143620551 in words is "forty-two billion, one hundred forty-three million, six hundred twenty thousand, five hundred fifty-one".