51446152149 has 32 divisors (see below), whose sum is σ = 80238766080. Its totient is φ = 28706432832.

The previous prime is 51446152133. The next prime is 51446152181. The reversal of 51446152149 is 94125164415.

It is not a de Polignac number, because 51446152149 - 2⁴ = 51446152133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51446152149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51446152049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5837104 + ... + 5845910.

It is an arithmetic number, because the mean of its divisors is an integer number (2507461440).

Almost surely, 2^51446152149 is an apocalyptic number.

It is an amenable number.

51446152149 is a deficient number, since it is larger than the sum of its proper divisors (28792613931).

51446152149 is a wasteful number, since it uses less digits than its factorization.

51446152149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15329.

The product of its digits is 172800, while the sum is 42.

The spelling of 51446152149 in words is "fifty-one billion, four hundred forty-six million, one hundred fifty-two thousand, one hundred forty-nine".