999949000756 has 12 divisors (see below), whose sum is σ = 1767236601060. Its totient is φ = 495024257600.

The previous prime is 999949000727. The next prime is 999949000777. The reversal of 999949000756 is 657000949999.

It can be written as a sum of positive squares in 2 ways, for example, as 544909712400 + 455039288356 = 738180^2 + 674566^2 .

It is a super-2 number, since 2×999949000756² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 999949000691 and 999949000700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1237560241 + ... + 1237561048.

It is an arithmetic number, because the mean of its divisors is an integer number (147269716755).

Almost surely, 2^999949000756 is an apocalyptic number.

It is an amenable number.

999949000756 is a deficient number, since it is larger than the sum of its proper divisors (767287600304).

999949000756 is a wasteful number, since it uses less digits than its factorization.

999949000756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2475121394 (or 2475121392 counting only the distinct ones).

The product of its (nonzero) digits is 49601160, while the sum is 67.

The spelling of 999949000756 in words is "nine hundred ninety-nine billion, nine hundred forty-nine million, seven hundred fifty-six", and thus it is an aban number.