53787683380 has 24 divisors (see below), whose sum is σ = 113539397832. Its totient is φ = 21403594752.

The previous prime is 53787683363. The next prime is 53787683381. The reversal of 53787683380 is 8338678735.

It can be written as a sum of positive squares in 4 ways, for example, as 7051296784 + 46736386596 = 83972^2 + 216186^2 .

It is a super-2 number, since 2×53787683380² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53787683381) 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, 6963457 + ... + 6971176.

It is an arithmetic number, because the mean of its divisors is an integer number (4730808243).

Almost surely, 2^53787683380 is an apocalyptic number.

It is an amenable number.

53787683380 is an abundant number, since it is smaller than the sum of its proper divisors (59751714452).

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

53787683380 is a wasteful number, since it uses less digits than its factorization.

53787683380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13934835 (or 13934833 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 58.

The spelling of 53787683380 in words is "fifty-three billion, seven hundred eighty-seven million, six hundred eighty-three thousand, three hundred eighty".