947749544397 has 48 divisors (see below), whose sum is σ = 1425828134016. Its totient is φ = 606145680000.

The previous prime is 947749544389. The next prime is 947749544407. The reversal of 947749544397 is 793445947749.

947749544397 is a `hidden beast` number, since 9 + 4 + 7 + 7 + 4 + 95 + 443 + 97 = 666.

947749544397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 947749544397 - 2³ = 947749544389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947749944397) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16519872 + ... + 16577142.

It is an arithmetic number, because the mean of its divisors is an integer number (29704752792).

Almost surely, 2^947749544397 is an apocalyptic number.

It is an amenable number.

947749544397 is a deficient number, since it is larger than the sum of its proper divisors (478078589619).

947749544397 is a wasteful number, since it uses less digits than its factorization.

947749544397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58082 (or 58079 counting only the distinct ones).

The product of its digits is 960180480, while the sum is 72.

The spelling of 947749544397 in words is "nine hundred forty-seven billion, seven hundred forty-nine million, five hundred forty-four thousand, three hundred ninety-seven".