749879866845 has 24 divisors (see below), whose sum is σ = 1300031521152. Its totient is φ = 399862159200.

The previous prime is 749879866819. The next prime is 749879866867. The reversal of 749879866845 is 548668978947.

749879866845 is a `hidden beast` number, since 7 + 498 + 7 + 9 + 86 + 6 + 8 + 45 = 666.

It is not a de Polignac number, because 749879866845 - 2⁶ = 749879866781 is a prime.

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, 1289761 + ... + 1778550.

It is an arithmetic number, because the mean of its divisors is an integer number (54167980048).

Almost surely, 2^749879866845 is an apocalyptic number.

It is an amenable number.

749879866845 is a deficient number, since it is larger than the sum of its proper divisors (550151654307).

749879866845 is a wasteful number, since it uses less digits than its factorization.

749879866845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3073753 (or 3073750 counting only the distinct ones).

The product of its digits is 5852528640, while the sum is 81.

The spelling of 749879866845 in words is "seven hundred forty-nine billion, eight hundred seventy-nine million, eight hundred sixty-six thousand, eight hundred forty-five".