51970201140 has 96 divisors (see below), whose sum is σ = 170956550016. Its totient is φ = 11629693440.

The previous prime is 51970201133. The next prime is 51970201141. The reversal of 51970201140 is 4110207915.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 51970201098 and 51970201107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51970201141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3019987 + ... + 3037146.

It is an arithmetic number, because the mean of its divisors is an integer number (1780797396).

Almost surely, 2^51970201140 is an apocalyptic number.

It is an amenable number.

51970201140 is an abundant number, since it is smaller than the sum of its proper divisors (118986348876).

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

51970201140 is a wasteful number, since it uses less digits than its factorization.

51970201140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6057169 (or 6057167 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 30.

The spelling of 51970201140 in words is "fifty-one billion, nine hundred seventy million, two hundred one thousand, one hundred forty".