53840395803890 has 32 divisors (see below), whose sum is σ = 102020210087040. Its totient is φ = 20401310592000.

The previous prime is 53840395803889. The next prime is 53840395803899. The reversal of 53840395803890 is 9830859304835.

It is not an unprimeable number, because it can be changed into a prime (53840395803899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6635951 + ... + 12317330.

It is an arithmetic number, because the mean of its divisors is an integer number (3188131565220).

Almost surely, 2^{53840395803890} is an apocalyptic number.

53840395803890 is a deficient number, since it is larger than the sum of its proper divisors (48179814283150).

53840395803890 is a wasteful number, since it uses less digits than its factorization.

53840395803890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18968258.

The product of its (nonzero) digits is 111974400, while the sum is 65.

The spelling of 53840395803890 in words is "fifty-three trillion, eight hundred forty billion, three hundred ninety-five million, eight hundred three thousand, eight hundred ninety".