78826053742 has 8 divisors (see below), whose sum is σ = 118299753000. Its totient is φ = 39392802744.

The previous prime is 78826053697. The next prime is 78826053743. The reversal of 78826053742 is 24735062887.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 78826053742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78826053743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10107192 + ... + 10114987.

It is an arithmetic number, because the mean of its divisors is an integer number (14787469125).

Almost surely, 2^78826053742 is an apocalyptic number.

78826053742 is a deficient number, since it is larger than the sum of its proper divisors (39473699258).

78826053742 is a wasteful number, since it uses less digits than its factorization.

78826053742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20224130.

The product of its (nonzero) digits is 4515840, while the sum is 52.

The spelling of 78826053742 in words is "seventy-eight billion, eight hundred twenty-six million, fifty-three thousand, seven hundred forty-two".