51445233142 has 8 divisors (see below), whose sum is σ = 77282514216. Its totient is φ = 25684395072.

The previous prime is 51445233113. The next prime is 51445233193. The reversal of 51445233142 is 24133254415.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×51445233142² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51445233098 and 51445233107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19109068 + ... + 19111759.

It is an arithmetic number, because the mean of its divisors is an integer number (9660314277).

Almost surely, 2^51445233142 is an apocalyptic number.

51445233142 is a deficient number, since it is larger than the sum of its proper divisors (25837281074).

51445233142 is a wasteful number, since it uses less digits than its factorization.

51445233142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38221502.

The product of its digits is 57600, while the sum is 34.

Adding to 51445233142 its reverse (24133254415), we get a palindrome (75578487557).

The spelling of 51445233142 in words is "fifty-one billion, four hundred forty-five million, two hundred thirty-three thousand, one hundred forty-two".