85811747265465 has 64 divisors (see below), whose sum is σ = 156726431366400. Its totient is φ = 39717936267264.

The previous prime is 85811747265449. The next prime is 85811747265473. The reversal of 85811747265465 is 56456274711858.

It is not a de Polignac number, because 85811747265465 - 2⁴ = 85811747265449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85811747265465.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10852495 + ... + 17011764.

It is an arithmetic number, because the mean of its divisors is an integer number (2448850490100).

Almost surely, 2^{85811747265465} is an apocalyptic number.

85811747265465 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

85811747265465 is a deficient number, since it is larger than the sum of its proper divisors (70914684100935).

85811747265465 is a wasteful number, since it uses less digits than its factorization.

85811747265465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27865226.

The product of its digits is 451584000, while the sum is 69.

The spelling of 85811747265465 in words is "eighty-five trillion, eight hundred eleven billion, seven hundred forty-seven million, two hundred sixty-five thousand, four hundred sixty-five".