78850707840 has 96 divisors (see below), whose sum is σ = 272281370400. Its totient is φ = 21026853888.

The previous prime is 78850707833. The next prime is 78850707841. The reversal of 78850707840 is 4870705887.

It is a tau number, because it is divible by the number of its divisors (96).

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78850707841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6838920 + ... + 6850439.

It is an arithmetic number, because the mean of its divisors is an integer number (2836264275).

Almost surely, 2^78850707840 is an apocalyptic number.

It is an amenable number.

78850707840 is an abundant number, since it is smaller than the sum of its proper divisors (193430662560).

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

78850707840 is a wasteful number, since it uses less digits than its factorization.

78850707840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13689384 (or 13689369 counting only the distinct ones).

The product of its (nonzero) digits is 3512320, while the sum is 54.

The spelling of 78850707840 in words is "seventy-eight billion, eight hundred fifty million, seven hundred seven thousand, eight hundred forty".