78899944003 has 8 divisors (see below), whose sum is σ = 81056626560. Its totient is φ = 76744537920.

The previous prime is 78899943971. The next prime is 78899944021. The reversal of 78899944003 is 30044999887.

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 78899944003 - 2⁵ = 78899943971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78899944063) 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, 193138 + ... + 441703.

It is an arithmetic number, because the mean of its divisors is an integer number (10132078320).

Almost surely, 2^78899944003 is an apocalyptic number.

78899944003 is a deficient number, since it is larger than the sum of its proper divisors (2156682557).

78899944003 is a wasteful number, since it uses less digits than its factorization.

78899944003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638237.

The product of its (nonzero) digits is 15676416, while the sum is 61.

The spelling of 78899944003 in words is "seventy-eight billion, eight hundred ninety-nine million, nine hundred forty-four thousand, three".