82803780154855 has 8 divisors (see below), whose sum is σ = 100089824771952. Its totient is φ = 65759498399808.

The previous prime is 82803780154847. The next prime is 82803780155093. The reversal of 82803780154855 is 55845108730828.

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

It is a cyclic number.

It is not a de Polignac number, because 82803780154855 - 2³ = 82803780154847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60440714757 + ... + 60440716126.

It is an arithmetic number, because the mean of its divisors is an integer number (12511228096494).

Almost surely, 2^{82803780154855} is an apocalyptic number.

82803780154855 is a deficient number, since it is larger than the sum of its proper divisors (17286044617097).

82803780154855 is a wasteful number, since it uses less digits than its factorization.

82803780154855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120881431025.

The product of its (nonzero) digits is 86016000, while the sum is 64.

The spelling of 82803780154855 in words is "eighty-two trillion, eight hundred three billion, seven hundred eighty million, one hundred fifty-four thousand, eight hundred fifty-five".