947927729749 has 72 divisors (see below), whose sum is σ = 1291345560960. Its totient is φ = 680813527680.

The previous prime is 947927729729. The next prime is 947927729779.

947927729749 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 947927729749 - 2⁷ = 947927729621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947927729729) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 104060407 + ... + 104069515.

Almost surely, 2^947927729749 is an apocalyptic number.

947927729749 is the 615769-th heptagonal number.

It is an amenable number.

947927729749 is a deficient number, since it is larger than the sum of its proper divisors (343417831211).

947927729749 is a wasteful number, since it uses less digits than its factorization.

947927729749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9891 (or 9867 counting only the distinct ones).

The product of its digits is 1008189504, while the sum is 76.

The spelling of 947927729749 in words is "nine hundred forty-seven billion, nine hundred twenty-seven million, seven hundred twenty-nine thousand, seven hundred forty-nine".