51013451145 has 16 divisors (see below), whose sum is σ = 81660200832. Its totient is φ = 27194280960.

The previous prime is 51013451123. The next prime is 51013451149. The reversal of 51013451145 is 54115431015.

It is not a de Polignac number, because 51013451145 - 2¹⁶ = 51013385609 is a prime.

It is a super-2 number, since 2×51013451145² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51013451149) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 773061 + ... + 836450.

It is an arithmetic number, because the mean of its divisors is an integer number (5103762552).

Almost surely, 2^51013451145 is an apocalyptic number.

It is an amenable number.

51013451145 is a deficient number, since it is larger than the sum of its proper divisors (30646749687).

51013451145 is a wasteful number, since it uses less digits than its factorization.

51013451145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611632.

The product of its (nonzero) digits is 6000, while the sum is 30.

The spelling of 51013451145 in words is "fifty-one billion, thirteen million, four hundred fifty-one thousand, one hundred forty-five".