51747720362 has 64 divisors (see below), whose sum is σ = 87332582400. Its totient is φ = 22835312640.

The previous prime is 51747720317. The next prime is 51747720377. The reversal of 51747720362 is 26302774715.

It is a super-2 number, since 2×51747720362² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25654778 + ... + 25656794.

It is an arithmetic number, because the mean of its divisors is an integer number (1364571600).

Almost surely, 2^51747720362 is an apocalyptic number.

51747720362 is a deficient number, since it is larger than the sum of its proper divisors (35584862038).

51747720362 is a wasteful number, since it uses less digits than its factorization.

51747720362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2431.

The product of its (nonzero) digits is 493920, while the sum is 44.

The spelling of 51747720362 in words is "fifty-one billion, seven hundred forty-seven million, seven hundred twenty thousand, three hundred sixty-two".