47781491305 has 16 divisors (see below), whose sum is σ = 57811728384. Its totient is φ = 37909468800.

The previous prime is 47781491297. The next prime is 47781491333. The reversal of 47781491305 is 50319418774.

It is not a de Polignac number, because 47781491305 - 2³ = 47781491297 is a prime.

It is a super-2 number, since 2×47781491305² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1797189 + ... + 1823581.

It is an arithmetic number, because the mean of its divisors is an integer number (3613233024).

Almost surely, 2^47781491305 is an apocalyptic number.

It is an amenable number.

47781491305 is a deficient number, since it is larger than the sum of its proper divisors (10030237079).

47781491305 is a wasteful number, since it uses less digits than its factorization.

47781491305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29376.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 47781491305 in words is "forty-seven billion, seven hundred eighty-one million, four hundred ninety-one thousand, three hundred five".