47748077400779 has 4 divisors (see below), whose sum is σ = 54569231315184. Its totient is φ = 40926923486376.

The previous prime is 47748077400761. The next prime is 47748077400883. The reversal of 47748077400779 is 97700477084774.

It is a happy number.

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 47748077400779 - 2²⁴ = 47748060623563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47748077400739) 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, 3410576957192 + ... + 3410576957205.

It is an arithmetic number, because the mean of its divisors is an integer number (13642307828796).

Almost surely, 2^{47748077400779} is an apocalyptic number.

47748077400779 is a deficient number, since it is larger than the sum of its proper divisors (6821153914405).

47748077400779 is an equidigital number, since it uses as much as digits as its factorization.

47748077400779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6821153914404.

The product of its (nonzero) digits is 542126592, while the sum is 71.

The spelling of 47748077400779 in words is "forty-seven trillion, seven hundred forty-eight billion, seventy-seven million, four hundred thousand, seven hundred seventy-nine".