82381065702465 has 32 divisors (see below), whose sum is σ = 132473801491200. Its totient is φ = 43715208708864.

The previous prime is 82381065702461. The next prime is 82381065702469. The reversal of 82381065702465 is 56420756018328.

It is an interprime number because it is at equal distance from previous prime (82381065702461) and next prime (82381065702469).

It is not a de Polignac number, because 82381065702465 - 2² = 82381065702461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82381065702461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 326423907 + ... + 326676183.

It is an arithmetic number, because the mean of its divisors is an integer number (4139806296600).

Almost surely, 2^{82381065702465} is an apocalyptic number.

It is an amenable number.

82381065702465 is a deficient number, since it is larger than the sum of its proper divisors (50092735788735).

82381065702465 is a wasteful number, since it uses less digits than its factorization.

82381065702465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361881.

The product of its (nonzero) digits is 19353600, while the sum is 57.

The spelling of 82381065702465 in words is "eighty-two trillion, three hundred eighty-one billion, sixty-five million, seven hundred two thousand, four hundred sixty-five".