51049238767 has 8 divisors (see below), whose sum is σ = 51143185296. Its totient is φ = 50955371712.

The previous prime is 51049238753. The next prime is 51049238771. The reversal of 51049238767 is 76783294015.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51049238767 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 (51049238717) 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, 1351713 + ... + 1388965.

It is an arithmetic number, because the mean of its divisors is an integer number (6392898162).

It is a 1-persistent number, because it is pandigital, but 2⋅51049238767 = 102098477534 is not.

Almost surely, 2^51049238767 is an apocalyptic number.

51049238767 is a deficient number, since it is larger than the sum of its proper divisors (93946529).

51049238767 is a wasteful number, since it uses less digits than its factorization.

51049238767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39737.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 51049238767 in words is "fifty-one billion, forty-nine million, two hundred thirty-eight thousand, seven hundred sixty-seven".