78882038025738 has 64 divisors (see below), whose sum is σ = 169958256943104. Its totient is φ = 24335978040000.

The previous prime is 78882038025737. The next prime is 78882038025797. The reversal of 78882038025738 is 83752083028887.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is not an unprimeable number, because it can be changed into a prime (78882038025737) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28499388 + ... + 31144488.

It is an arithmetic number, because the mean of its divisors is an integer number (2655597764736).

Almost surely, 2^{78882038025738} is an apocalyptic number.

78882038025738 is an abundant number, since it is smaller than the sum of its proper divisors (91076218917366).

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

78882038025738 is a wasteful number, since it uses less digits than its factorization.

78882038025738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2652131.

The product of its (nonzero) digits is 289013760, while the sum is 69.

The spelling of 78882038025738 in words is "seventy-eight trillion, eight hundred eighty-two billion, thirty-eight million, twenty-five thousand, seven hundred thirty-eight".