65398318870 has 16 divisors (see below), whose sum is σ = 117753241968. Its totient is φ = 26151268000.

The previous prime is 65398318781. The next prime is 65398318873. The reversal of 65398318870 is 7881389356.

65398318870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×65398318870² (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 (65398318873) 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, 973309 + ... + 1038328.

It is an arithmetic number, because the mean of its divisors is an integer number (7359577623).

Almost surely, 2^65398318870 is an apocalyptic number.

65398318870 is a deficient number, since it is larger than the sum of its proper divisors (52354923098).

65398318870 is a wasteful number, since it uses less digits than its factorization.

65398318870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2014895.

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 65398318870 in words is "sixty-five billion, three hundred ninety-eight million, three hundred eighteen thousand, eight hundred seventy".