51346383739 has 16 divisors (see below), whose sum is σ = 58782651840. Its totient is φ = 43935459840.

The previous prime is 51346383733. The next prime is 51346383749. The reversal of 51346383739 is 93738364315.

It is a cyclic number.

It is not a de Polignac number, because 51346383739 - 2⁷ = 51346383611 is a prime.

It is a super-2 number, since 2×51346383739² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51346383733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17649417 + ... + 17652325.

It is an arithmetic number, because the mean of its divisors is an integer number (3673915740).

Almost surely, 2^51346383739 is an apocalyptic number.

51346383739 is a deficient number, since it is larger than the sum of its proper divisors (7436268101).

51346383739 is a wasteful number, since it uses less digits than its factorization.

51346383739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6390.

The product of its digits is 4898880, while the sum is 52.

The spelling of 51346383739 in words is "fifty-one billion, three hundred forty-six million, three hundred eighty-three thousand, seven hundred thirty-nine".