51036046545 has 64 divisors (see below), whose sum is σ = 94670622720. Its totient is φ = 23202892800.

The previous prime is 51036046427. The next prime is 51036046553. The reversal of 51036046545 is 54564063015.

It is not a de Polignac number, because 51036046545 - 2⁷ = 51036046417 is a prime.

It is a Curzon 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 63 ways as a sum of consecutive naturals, for example, 726586 + ... + 793724.

It is an arithmetic number, because the mean of its divisors is an integer number (1479228480).

Almost surely, 2^51036046545 is an apocalyptic number.

51036046545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51036046545 is a deficient number, since it is larger than the sum of its proper divisors (43634576175).

51036046545 is a wasteful number, since it uses less digits than its factorization.

51036046545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67446.

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 51036046545 in words is "fifty-one billion, thirty-six million, forty-six thousand, five hundred forty-five".