42351433551 has 32 divisors (see below), whose sum is σ = 71838848000. Its totient is φ = 24156027360.

The previous prime is 42351433519. The next prime is 42351433567. The reversal of 42351433551 is 15533415324.

42351433551 is a `hidden beast` number, since 4 + 23 + 51 + 4 + 33 + 551 = 666.

It is not a de Polignac number, because 42351433551 - 2⁵ = 42351433519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42351433951) 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, 104851 + ... + 309348.

It is an arithmetic number, because the mean of its divisors is an integer number (2244964000).

Almost surely, 2^42351433551 is an apocalyptic number.

42351433551 is a deficient number, since it is larger than the sum of its proper divisors (29487414449).

42351433551 is a wasteful number, since it uses less digits than its factorization.

42351433551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414756 (or 414750 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

Adding to 42351433551 its reverse (15533415324), we get a palindrome (57884848875).

The spelling of 42351433551 in words is "forty-two billion, three hundred fifty-one million, four hundred thirty-three thousand, five hundred fifty-one".