51404331202 has 16 divisors (see below), whose sum is σ = 88126414272. Its totient is φ = 22029251760.

The previous prime is 51404331197. The next prime is 51404331211. The reversal of 51404331202 is 20213340415.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206233 + ... + 381235.

It is an arithmetic number, because the mean of its divisors is an integer number (5507900892).

Almost surely, 2^51404331202 is an apocalyptic number.

51404331202 is a deficient number, since it is larger than the sum of its proper divisors (36722083070).

51404331202 is a wasteful number, since it uses less digits than its factorization.

51404331202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195993.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 51404331202 its reverse (20213340415), we get a palindrome (71617671617).

The spelling of 51404331202 in words is "fifty-one billion, four hundred four million, three hundred thirty-one thousand, two hundred two".