42551542141 has 4 divisors (see below), whose sum is σ = 42551985312. Its totient is φ = 42551098972.

The previous prime is 42551542139. The next prime is 42551542157. The reversal of 42551542141 is 14124515524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42551542141 - 2¹ = 42551542139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42551542097 and 42551542106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42551549141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10591 + ... + 291916.

It is an arithmetic number, because the mean of its divisors is an integer number (10637996328).

Almost surely, 2^42551542141 is an apocalyptic number.

It is an amenable number.

42551542141 is a deficient number, since it is larger than the sum of its proper divisors (443171).

42551542141 is a wasteful number, since it uses less digits than its factorization.

42551542141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443170.

The product of its digits is 32000, while the sum is 34.

The spelling of 42551542141 in words is "forty-two billion, five hundred fifty-one million, five hundred forty-two thousand, one hundred forty-one".