947689986749 has 16 divisors (see below), whose sum is σ = 1049270781120. Its totient is φ = 848708876160.

The previous prime is 947689986739. The next prime is 947689986757.

947689986749 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 947689986749 - 2²⁴ = 947673209533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947689986739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46127 + ... + 1377500.

It is an arithmetic number, because the mean of its divisors is an integer number (65579423820).

Almost surely, 2^947689986749 is an apocalyptic number.

It is an amenable number.

947689986749 is a deficient number, since it is larger than the sum of its proper divisors (101580794371).

947689986749 is a wasteful number, since it uses less digits than its factorization.

947689986749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424540.

The product of its digits is 11851370496, while the sum is 86.

The spelling of 947689986749 in words is "nine hundred forty-seven billion, six hundred eighty-nine million, nine hundred eighty-six thousand, seven hundred forty-nine".