51117753102 has 64 divisors (see below), whose sum is σ = 116201568000. Its totient is φ = 14861242368.

The previous prime is 51117753097. The next prime is 51117753103. The reversal of 51117753102 is 20135771115.

It is a super-2 number, since 2×51117753102² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51117753103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 516174 + ... + 607182.

It is an arithmetic number, because the mean of its divisors is an integer number (1815649500).

Almost surely, 2^51117753102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51117753102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58100784000).

51117753102 is an abundant number, since it is smaller than the sum of its proper divisors (65083814898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51117753102 is a wasteful number, since it uses less digits than its factorization.

51117753102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91425.

The product of its (nonzero) digits is 7350, while the sum is 33.

The spelling of 51117753102 in words is "fifty-one billion, one hundred seventeen million, seven hundred fifty-three thousand, one hundred two".