78365853933 has 8 divisors (see below), whose sum is σ = 104489747808. Its totient is φ = 52242931344.

The previous prime is 78365853919. The next prime is 78365853941. The reversal of 78365853933 is 33935856387.

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

It is not a de Polignac number, because 78365853933 - 2⁹ = 78365853421 is a prime.

It is a super-2 number, since 2×78365853933² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78365853233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27210 + ... + 396827.

It is an arithmetic number, because the mean of its divisors is an integer number (13061218476).

Almost surely, 2^78365853933 is an apocalyptic number.

It is an amenable number.

78365853933 is a deficient number, since it is larger than the sum of its proper divisors (26123893875).

78365853933 is a wasteful number, since it uses less digits than its factorization.

78365853933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485643.

The product of its digits is 48988800, while the sum is 60.

The spelling of 78365853933 in words is "seventy-eight billion, three hundred sixty-five million, eight hundred fifty-three thousand, nine hundred thirty-three".