51434203202140 has 24 divisors (see below), whose sum is σ = 117831083699952. Its totient is φ = 18703346618880.

The previous prime is 51434203202119. The next prime is 51434203202149. The reversal of 51434203202140 is 4120230243415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51434203202149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116895916149 + ... + 116895916588.

It is an arithmetic number, because the mean of its divisors is an integer number (4909628487498).

Almost surely, 2^{51434203202140} is an apocalyptic number.

It is an amenable number.

51434203202140 is an abundant number, since it is smaller than the sum of its proper divisors (66396880497812).

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

51434203202140 is a wasteful number, since it uses less digits than its factorization.

51434203202140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233791832757 (or 233791832755 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 51434203202140 its reverse (4120230243415), we get a palindrome (55554433445555).

The spelling of 51434203202140 in words is "fifty-one trillion, four hundred thirty-four billion, two hundred three million, two hundred two thousand, one hundred forty".