51874849202 has 22 divisors (see below), whose sum is σ = 85593501183. Its totient is φ = 23579476910.

The previous prime is 51874849183. The next prime is 51874849207. The reversal of 51874849202 is 20294847815.

It can be written as a sum of positive squares in only one way, i.e., 25937424601 + 25937424601 = 161051^2 + 161051^2 .

It is a tau number, because it is divible by the number of its divisors (22).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=161051.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (51874849207) 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 10 ways as a sum of consecutive naturals, for example, 4715895377 + ... + 4715895387.

Almost surely, 2^51874849202 is an apocalyptic number.

51874849202 is a deficient number, since it is larger than the sum of its proper divisors (33718651981).

51874849202 is an frugal number, since it uses more digits than its factorization.

51874849202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 13 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 50.

Multiplying 51874849202 by its sum of digits (50), we get a square (2593742460100 = 1610510²).

The spelling of 51874849202 in words is "fifty-one billion, eight hundred seventy-four million, eight hundred forty-nine thousand, two hundred two".