47448778753 has 4 divisors (see below), whose sum is σ = 48552238768. Its totient is φ = 46345318740.

The previous prime is 47448778723. The next prime is 47448778757. The reversal of 47448778753 is 35787784474.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47448778753 - 2³³ = 38858844161 is a prime.

It is a super-2 number, since 2×47448778753² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47448778757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 551729943 + ... + 551730028.

It is an arithmetic number, because the mean of its divisors is an integer number (12138059692).

Almost surely, 2^47448778753 is an apocalyptic number.

47448778753 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

47448778753 is a deficient number, since it is larger than the sum of its proper divisors (1103460015).

47448778753 is a wasteful number, since it uses less digits than its factorization.

47448778753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103460014.

The product of its digits is 147517440, while the sum is 64.

The spelling of 47448778753 in words is "forty-seven billion, four hundred forty-eight million, seven hundred seventy-eight thousand, seven hundred fifty-three".