78042756003 has 4 divisors (see below), whose sum is σ = 104057008008. Its totient is φ = 52028504000.

The previous prime is 78042755963. The next prime is 78042756007. The reversal of 78042756003 is 30065724087.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78042756003 - 2²⁹ = 77505885091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78042756007) 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, 13007125998 + ... + 13007126003.

It is an arithmetic number, because the mean of its divisors is an integer number (26014252002).

Almost surely, 2^78042756003 is an apocalyptic number.

78042756003 is a deficient number, since it is larger than the sum of its proper divisors (26014252005).

78042756003 is a wasteful number, since it uses less digits than its factorization.

78042756003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26014252004.

The product of its (nonzero) digits is 282240, while the sum is 42.

The spelling of 78042756003 in words is "seventy-eight billion, forty-two million, seven hundred fifty-six thousand, three".