820076387502 has 8 divisors (see below), whose sum is σ = 1640152775016. Its totient is φ = 273358795832.

The previous prime is 820076387497. The next prime is 820076387503. The reversal of 820076387502 is 205783670028.

It is a sphenic number, since it is the product of 3 distinct primes.

820076387502 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (820076387503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68339698953 + ... + 68339698964.

It is an arithmetic number, because the mean of its divisors is an integer number (205019096877).

Almost surely, 2^820076387502 is an apocalyptic number.

820076387502 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

820076387502 is a wasteful number, since it uses less digits than its factorization.

820076387502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136679397922.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 820076387502 in words is "eight hundred twenty billion, seventy-six million, three hundred eighty-seven thousand, five hundred two".