51144150549 has 8 divisors (see below), whose sum is σ = 68197013152. Its totient is φ = 34093694160.

The previous prime is 51144150481. The next prime is 51144150559. The reversal of 51144150549 is 94505144115.

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

It is a de Polignac number, because none of the positive numbers 2^k-51144150549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51144150559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 551359 + ... + 637404.

It is an arithmetic number, because the mean of its divisors is an integer number (8524626644).

Almost surely, 2^51144150549 is an apocalyptic number.

It is an amenable number.

51144150549 is a deficient number, since it is larger than the sum of its proper divisors (17052862603).

51144150549 is a wasteful number, since it uses less digits than its factorization.

51144150549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203107.

The product of its (nonzero) digits is 72000, while the sum is 39.

The spelling of 51144150549 in words is "fifty-one billion, one hundred forty-four million, one hundred fifty thousand, five hundred forty-nine".