52782904151640 has 384 divisors, whose sum is σ = 191130973488000. Its totient is φ = 12543347367936.

The previous prime is 52782904151623. The next prime is 52782904151743. The reversal of 52782904151640 is 4615140928725.

52782904151640 is a `hidden beast` number, since 5 + 2 + 7 + 82 + 9 + 0 + 4 + 1 + 516 + 40 = 666.

It is a super-2 number, since 2×52782904151640² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1920831421 + ... + 1920858899.

It is an arithmetic number, because the mean of its divisors is an integer number (497736910125).

Almost surely, 2^{52782904151640} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52782904151640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95565486744000).

52782904151640 is an abundant number, since it is smaller than the sum of its proper divisors (138348069336360).

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

52782904151640 is a wasteful number, since it uses less digits than its factorization.

52782904151640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41691 (or 41684 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 52782904151640 in words is "fifty-two trillion, seven hundred eighty-two billion, nine hundred four million, one hundred fifty-one thousand, six hundred forty".