51152142042 has 24 divisors (see below), whose sum is σ = 111409908480. Its totient is φ = 16961442120.

The previous prime is 51152142037. The next prime is 51152142049. The reversal of 51152142042 is 24024125115.

It is a happy number.

51152142042 is a `hidden beast` number, since 51 + 152 + 1 + 420 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 51152141997 and 51152142015.

It is not an unprimeable number, because it can be changed into a prime (51152142049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7435792 + ... + 7442667.

It is an arithmetic number, because the mean of its divisors is an integer number (4642079520).

Almost surely, 2^51152142042 is an apocalyptic number.

51152142042 is an abundant number, since it is smaller than the sum of its proper divisors (60257766438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51152142042 is a wasteful number, since it uses less digits than its factorization.

51152142042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14878658 (or 14878655 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 51152142042 its reverse (24024125115), we get a palindrome (75176267157).

The spelling of 51152142042 in words is "fifty-one billion, one hundred fifty-two million, one hundred forty-two thousand, forty-two".