10645731947 has 8 divisors (see below), whose sum is σ = 10737278976. Its totient is φ = 10554305832.

The previous prime is 10645731881. The next prime is 10645731949. The reversal of 10645731947 is 74913754601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10645731947 - 2³⁰ = 9571990123 is a prime.

It is a super-2 number, since 2×10645731947² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10645731949) 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 7 ways as a sum of consecutive naturals, for example, 151268 + ... + 210174.

It is an arithmetic number, because the mean of its divisors is an integer number (1342159872).

Almost surely, 2^10645731947 is an apocalyptic number.

10645731947 is a deficient number, since it is larger than the sum of its proper divisors (91547029).

10645731947 is a wasteful number, since it uses less digits than its factorization.

10645731947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60457.

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 10645731947 in words is "ten billion, six hundred forty-five million, seven hundred thirty-one thousand, nine hundred forty-seven".