51343001731 has 16 divisors (see below), whose sum is σ = 61785884160. Its totient is φ = 41678651520.

The previous prime is 51343001719. The next prime is 51343001767. The reversal of 51343001731 is 13710034315.

It is a cyclic number.

It is not a de Polignac number, because 51343001731 - 2⁷ = 51343001603 is a prime.

It is a super-2 number, since 2×51343001731² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51343001731.

It is not an unprimeable number, because it can be changed into a prime (51343001701) 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, 363915 + ... + 484891.

It is an arithmetic number, because the mean of its divisors is an integer number (3861617760).

Almost surely, 2^51343001731 is an apocalyptic number.

51343001731 is a deficient number, since it is larger than the sum of its proper divisors (10442882429).

51343001731 is a wasteful number, since it uses less digits than its factorization.

51343001731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124194.

The product of its (nonzero) digits is 3780, while the sum is 28.

The spelling of 51343001731 in words is "fifty-one billion, three hundred forty-three million, one thousand, seven hundred thirty-one".