51436331021202 has 32 divisors (see below), whose sum is σ = 106420584931200. Its totient is φ = 16554129744768.

The previous prime is 51436331021189. The next prime is 51436331021249. The reversal of 51436331021202 is 20212013363415.

It is a super-2 number, since 2×51436331021202² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35213283 + ... + 36644889.

It is an arithmetic number, because the mean of its divisors is an integer number (3325643279100).

Almost surely, 2^{51436331021202} is an apocalyptic number.

51436331021202 is an abundant number, since it is smaller than the sum of its proper divisors (54984253909998).

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

51436331021202 is a wasteful number, since it uses less digits than its factorization.

51436331021202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638130.

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 51436331021202 its reverse (20212013363415), we get a palindrome (71648344384617).

The spelling of 51436331021202 in words is "fifty-one trillion, four hundred thirty-six billion, three hundred thirty-one million, twenty-one thousand, two hundred two".