78804907773 has 8 divisors (see below), whose sum is σ = 105085464000. Its totient is φ = 52530478368.

The previous prime is 78804907771. The next prime is 78804907781. The reversal of 78804907773 is 37770940887.

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

It is not a de Polignac number, because 78804907773 - 2¹ = 78804907771 is a prime.

It is a super-2 number, since 2×78804907773² (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 (78804907771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1501608 + ... + 1553201.

It is an arithmetic number, because the mean of its divisors is an integer number (13135683000).

Almost surely, 2^78804907773 is an apocalyptic number.

It is an amenable number.

78804907773 is a deficient number, since it is larger than the sum of its proper divisors (26280556227).

78804907773 is a wasteful number, since it uses less digits than its factorization.

78804907773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3063411.

The product of its (nonzero) digits is 16595712, while the sum is 60.

The spelling of 78804907773 in words is "seventy-eight billion, eight hundred four million, nine hundred seven thousand, seven hundred seventy-three".