51002442910447 has 4 divisors (see below), whose sum is σ = 58288506183376. Its totient is φ = 43716379637520.

The previous prime is 51002442910439. The next prime is 51002442910477. The reversal of 51002442910447 is 74401924420015.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51002442910447 - 2³ = 51002442910439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51002442910477) 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, 3643031636454 + ... + 3643031636467.

It is an arithmetic number, because the mean of its divisors is an integer number (14572126545844).

Almost surely, 2^{51002442910447} is an apocalyptic number.

51002442910447 is a deficient number, since it is larger than the sum of its proper divisors (7286063272929).

51002442910447 is an equidigital number, since it uses as much as digits as its factorization.

51002442910447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7286063272928.

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 51002442910447 in words is "fifty-one trillion, two billion, four hundred forty-two million, nine hundred ten thousand, four hundred forty-seven".