8747003802645 has 24 divisors (see below), whose sum is σ = 15272140956696. Its totient is φ = 4631017095168.

The previous prime is 8747003802577. The next prime is 8747003802661. The reversal of 8747003802645 is 5462083007478.

8747003802645 is a `hidden beast` number, since 87 + 470 + 0 + 38 + 0 + 2 + 64 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 433014009444 + 8313989793201 = 658038^2 + 2883399^2 .

It is not a de Polignac number, because 8747003802645 - 2⁷ = 8747003802517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8747003802591 and 8747003802600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 709402092 + ... + 709414421.

It is an arithmetic number, because the mean of its divisors is an integer number (636339206529).

Almost surely, 2^{8747003802645} is an apocalyptic number.

It is an amenable number.

8747003802645 is a deficient number, since it is larger than the sum of its proper divisors (6525137154051).

8747003802645 is a wasteful number, since it uses less digits than its factorization.

8747003802645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418816661 (or 1418816658 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 54.

The spelling of 8747003802645 in words is "eight trillion, seven hundred forty-seven billion, three million, eight hundred two thousand, six hundred forty-five".