947747430747 has 72 divisors (see below), whose sum is σ = 1529173125168. Its totient is φ = 565102137600.

The previous prime is 947747430743. The next prime is 947747430757. The reversal of 947747430747 is 747034747749.

947747430747 is a `hidden beast` number, since 94 + 7 + 7 + 47 + 430 + 74 + 7 = 666.

It is not a de Polignac number, because 947747430747 - 2² = 947747430743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (947747430743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6140097 + ... + 6292557.

Almost surely, 2^947747430747 is an apocalyptic number.

947747430747 is a deficient number, since it is larger than the sum of its proper divisors (581425694421).

947747430747 is a wasteful number, since it uses less digits than its factorization.

947747430747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152621 (or 152605 counting only the distinct ones).

The product of its (nonzero) digits is 116169984, while the sum is 63.

The spelling of 947747430747 in words is "nine hundred forty-seven billion, seven hundred forty-seven million, four hundred thirty thousand, seven hundred forty-seven".