8749101645 has 24 divisors (see below), whose sum is σ = 15167476896. Its totient is φ = 4665459168.

The previous prime is 8749101577. The next prime is 8749101671. The reversal of 8749101645 is 5461019478.

It is not a de Polignac number, because 8749101645 - 2¹⁰ = 8749100621 is a prime.

It is a super-3 number, since 3×8749101645³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 8749101645.

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, 402834 + ... + 423996.

It is an arithmetic number, because the mean of its divisors is an integer number (631978204).

Almost surely, 2^8749101645 is an apocalyptic number.

It is an amenable number.

8749101645 is a deficient number, since it is larger than the sum of its proper divisors (6418375251).

8749101645 is a wasteful number, since it uses less digits than its factorization.

8749101645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30361 (or 30358 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 8749101645 is about 93536.6326366307. The cubic root of 8749101645 is about 2060.5721260191.

The spelling of 8749101645 in words is "eight billion, seven hundred forty-nine million, one hundred one thousand, six hundred forty-five".