51354344542 has 4 divisors (see below), whose sum is σ = 77031516816. Its totient is φ = 25677172270.

The previous prime is 51354344537. The next prime is 51354344581. The reversal of 51354344542 is 24544345315.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 51354344495 and 51354344504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12838586134 + ... + 12838586137.

It is an arithmetic number, because the mean of its divisors is an integer number (19257879204).

Almost surely, 2^51354344542 is an apocalyptic number.

51354344542 is a deficient number, since it is larger than the sum of its proper divisors (25677172274).

51354344542 is a wasteful number, since it uses less digits than its factorization.

51354344542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25677172273.

The product of its digits is 576000, while the sum is 40.

Adding to 51354344542 its reverse (24544345315), we get a palindrome (75898689857).

The spelling of 51354344542 in words is "fifty-one billion, three hundred fifty-four million, three hundred forty-four thousand, five hundred forty-two".