82788547901 has 4 divisors (see below), whose sum is σ = 82822718112. Its totient is φ = 82754377692.

The previous prime is 82788547883. The next prime is 82788547973. The reversal of 82788547901 is 10974588728.

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 82788547901 - 2⁶ = 82788547837 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 (82788547991) 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, 17081471 + ... + 17086316.

It is an arithmetic number, because the mean of its divisors is an integer number (20705679528).

Almost surely, 2^82788547901 is an apocalyptic number.

It is an amenable number.

82788547901 is a deficient number, since it is larger than the sum of its proper divisors (34170211).

82788547901 is a wasteful number, since it uses less digits than its factorization.

82788547901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34170210.

The product of its (nonzero) digits is 9031680, while the sum is 59.

The spelling of 82788547901 in words is "eighty-two billion, seven hundred eighty-eight million, five hundred forty-seven thousand, nine hundred one".