51047519039 has 8 divisors (see below), whose sum is σ = 55690706640. Its totient is φ = 46404748800.

The previous prime is 51047519009. The next prime is 51047519041. The reversal of 51047519039 is 93091574015.

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

It is a cyclic number.

It is not a de Polignac number, because 51047519039 - 2⁸ = 51047518783 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 (51047519009) 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, 186719 + ... + 370079.

It is an arithmetic number, because the mean of its divisors is an integer number (6961338330).

Almost surely, 2^51047519039 is an apocalyptic number.

51047519039 is a deficient number, since it is larger than the sum of its proper divisors (4643187601).

51047519039 is a wasteful number, since it uses less digits than its factorization.

51047519039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208681.

The product of its (nonzero) digits is 170100, while the sum is 44.

The spelling of 51047519039 in words is "fifty-one billion, forty-seven million, five hundred nineteen thousand, thirty-nine".