67801455897 has 64 divisors (see below), whose sum is σ = 108058750464. Its totient is φ = 37006295040.

The previous prime is 67801455877. The next prime is 67801455907. The reversal of 67801455897 is 79855410876.

It is not a de Polignac number, because 67801455897 - 2¹⁹ = 67800931609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67801455897.

It is not an unprimeable number, because it can be changed into a prime (67801455817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32086713 + ... + 32088825.

It is an arithmetic number, because the mean of its divisors is an integer number (1688417976).

Almost surely, 2^67801455897 is an apocalyptic number.

It is an amenable number.

67801455897 is a deficient number, since it is larger than the sum of its proper divisors (40257294567).

67801455897 is a wasteful number, since it uses less digits than its factorization.

67801455897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2898.

The product of its (nonzero) digits is 16934400, while the sum is 60.

The spelling of 67801455897 in words is "sixty-seven billion, eight hundred one million, four hundred fifty-five thousand, eight hundred ninety-seven".