78826209024 has 72 divisors (see below), whose sum is σ = 214909651152. Its totient is φ = 25634529280.

The previous prime is 78826209013. The next prime is 78826209029. The reversal of 78826209024 is 42090262887.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78826209029) 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, 1220199 + ... + 1283174.

It is an arithmetic number, because the mean of its divisors is an integer number (2984856266).

Almost surely, 2^78826209024 is an apocalyptic number.

It is an amenable number.

78826209024 is an abundant number, since it is smaller than the sum of its proper divisors (136083442128).

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

78826209024 is a wasteful number, since it uses less digits than its factorization.

78826209024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2503433 (or 2503419 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 78826209024 in words is "seventy-eight billion, eight hundred twenty-six million, two hundred nine thousand, twenty-four".