53720571738 has 16 divisors (see below), whose sum is σ = 108426843360. Its totient is φ = 17742573936.

The previous prime is 53720571733. The next prime is 53720571799. The reversal of 53720571738 is 83717502735.

It is not an unprimeable number, because it can be changed into a prime (53720571731) 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, 41070120 + ... + 41071427.

It is an arithmetic number, because the mean of its divisors is an integer number (6776677710).

Almost surely, 2^53720571738 is an apocalyptic number.

53720571738 is an abundant number, since it is smaller than the sum of its proper divisors (54706271622).

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

53720571738 is a wasteful number, since it uses less digits than its factorization.

53720571738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82141661.

The product of its (nonzero) digits is 1234800, while the sum is 48.

The spelling of 53720571738 in words is "fifty-three billion, seven hundred twenty million, five hundred seventy-one thousand, seven hundred thirty-eight".