65308534837494 has 64 divisors (see below), whose sum is σ = 141764199591168. Its totient is φ = 19937895120000.

The previous prime is 65308534837489. The next prime is 65308534837519. The reversal of 65308534837494 is 49473843580356.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55628277 + ... + 56790159.

It is an arithmetic number, because the mean of its divisors is an integer number (2215065618612).

Almost surely, 2^{65308534837494} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65308534837494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70882099795584).

65308534837494 is an abundant number, since it is smaller than the sum of its proper divisors (76455664753674).

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

65308534837494 is a wasteful number, since it uses less digits than its factorization.

65308534837494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167533.

The product of its (nonzero) digits is 1045094400, while the sum is 69.

The spelling of 65308534837494 in words is "sixty-five trillion, three hundred eight billion, five hundred thirty-four million, eight hundred thirty-seven thousand, four hundred ninety-four".