51642076403 has 4 divisors (see below), whose sum is σ = 52843054968. Its totient is φ = 50441097840.

The previous prime is 51642076393. The next prime is 51642076439. The reversal of 51642076403 is 30467024615.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51642076403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51642076103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600489218 + ... + 600489303.

It is an arithmetic number, because the mean of its divisors is an integer number (13210763742).

Almost surely, 2^51642076403 is an apocalyptic number.

51642076403 is a deficient number, since it is larger than the sum of its proper divisors (1200978565).

51642076403 is a wasteful number, since it uses less digits than its factorization.

51642076403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200978564.

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 51642076403 in words is "fifty-one billion, six hundred forty-two million, seventy-six thousand, four hundred three".