82649274653 has 4 divisors (see below), whose sum is σ = 90162845088. Its totient is φ = 75135704220.

The previous prime is 82649274641. The next prime is 82649274671. The reversal of 82649274653 is 35647294628.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82649274653 - 2⁸ = 82649274397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82649174653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3756785201 + ... + 3756785222.

It is an arithmetic number, because the mean of its divisors is an integer number (22540711272).

Almost surely, 2^82649274653 is an apocalyptic number.

It is an amenable number.

82649274653 is a deficient number, since it is larger than the sum of its proper divisors (7513570435).

82649274653 is a wasteful number, since it uses less digits than its factorization.

82649274653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7513570434.

The product of its digits is 17418240, while the sum is 56.

The spelling of 82649274653 in words is "eighty-two billion, six hundred forty-nine million, two hundred seventy-four thousand, six hundred fifty-three".