51335954382 has 16 divisors (see below), whose sum is σ = 103158508032. Its totient is φ = 17030884920.

The previous prime is 51335954377. The next prime is 51335954387. The reversal of 51335954382 is 28345953315.

It is an interprime number because it is at equal distance from previous prime (51335954377) and next prime (51335954387).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51335954387) 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, 20273598 + ... + 20276129.

It is an arithmetic number, because the mean of its divisors is an integer number (6447406752).

Almost surely, 2^51335954382 is an apocalyptic number.

51335954382 is an abundant number, since it is smaller than the sum of its proper divisors (51822553650).

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

51335954382 is a wasteful number, since it uses less digits than its factorization.

51335954382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40549943.

The product of its digits is 1944000, while the sum is 48.

The spelling of 51335954382 in words is "fifty-one billion, three hundred thirty-five million, nine hundred fifty-four thousand, three hundred eighty-two".