65448193858 has 16 divisors (see below), whose sum is σ = 107832265920. Its totient is φ = 29653872336.

The previous prime is 65448193847. The next prime is 65448193879. The reversal of 65448193858 is 85839184456.

It is a junction number, because it is equal to n+sod(n) for n = 65448193796 and 65448193805.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 37440885 + ... + 37442632.

It is an arithmetic number, because the mean of its divisors is an integer number (6739516620).

Almost surely, 2^65448193858 is an apocalyptic number.

65448193858 is a deficient number, since it is larger than the sum of its proper divisors (42384072062).

65448193858 is a wasteful number, since it uses less digits than its factorization.

65448193858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74883561.

The product of its digits is 33177600, while the sum is 61.

The spelling of 65448193858 in words is "sixty-five billion, four hundred forty-eight million, one hundred ninety-three thousand, eight hundred fifty-eight".