82578373334801 has 4 divisors (see below), whose sum is σ = 85242191829504. Its totient is φ = 79914554840100.

The previous prime is 82578373334791. The next prime is 82578373334837. The reversal of 82578373334801 is 10843337387528.

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 82578373334801 - 2¹⁰ = 82578373333777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82578373334201) 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, 1331909247305 + ... + 1331909247366.

It is an arithmetic number, because the mean of its divisors is an integer number (21310547957376).

Almost surely, 2^{82578373334801} is an apocalyptic number.

It is an amenable number.

82578373334801 is a deficient number, since it is larger than the sum of its proper divisors (2663818494703).

82578373334801 is a wasteful number, since it uses less digits than its factorization.

82578373334801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2663818494702.

The product of its (nonzero) digits is 81285120, while the sum is 62.

The spelling of 82578373334801 in words is "eighty-two trillion, five hundred seventy-eight billion, three hundred seventy-three million, three hundred thirty-four thousand, eight hundred one".