51423555142 has 8 divisors (see below), whose sum is σ = 77213804976. Its totient is φ = 25685620152.

The previous prime is 51423555137. The next prime is 51423555167. The reversal of 51423555142 is 24155532415.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13076253 + ... + 13080184.

It is an arithmetic number, because the mean of its divisors is an integer number (9651725622).

Almost surely, 2^51423555142 is an apocalyptic number.

51423555142 is a deficient number, since it is larger than the sum of its proper divisors (25790249834).

51423555142 is a wasteful number, since it uses less digits than its factorization.

51423555142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26157422.

The product of its digits is 120000, while the sum is 37.

The spelling of 51423555142 in words is "fifty-one billion, four hundred twenty-three million, five hundred fifty-five thousand, one hundred forty-two".