51613467442 has 8 divisors (see below), whose sum is σ = 77809248000. Its totient is φ = 25677051444.

The previous prime is 51613467439. The next prime is 51613467443. The reversal of 51613467442 is 24476431615.

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

It is not an unprimeable number, because it can be changed into a prime (51613467443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64840642 + ... + 64841437.

It is an arithmetic number, because the mean of its divisors is an integer number (9726156000).

Almost surely, 2^51613467442 is an apocalyptic number.

51613467442 is a deficient number, since it is larger than the sum of its proper divisors (26195780558).

51613467442 is a wasteful number, since it uses less digits than its factorization.

51613467442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129682280.

The product of its digits is 483840, while the sum is 43.

The spelling of 51613467442 in words is "fifty-one billion, six hundred thirteen million, four hundred sixty-seven thousand, four hundred forty-two".