51609441336 has 16 divisors (see below), whose sum is σ = 129023603400. Its totient is φ = 17203147104.

The previous prime is 51609441283. The next prime is 51609441337. The reversal of 51609441336 is 63314490615.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51609441337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1075196671 + ... + 1075196718.

Almost surely, 2^51609441336 is an apocalyptic number.

It is an amenable number.

51609441336 is an abundant number, since it is smaller than the sum of its proper divisors (77414162064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51609441336 is a wasteful number, since it uses less digits than its factorization.

51609441336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150393398 (or 2150393394 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 51609441336 in words is "fifty-one billion, six hundred nine million, four hundred forty-one thousand, three hundred thirty-six".