2745736642 has 16 divisors (see below), whose sum is σ = 4688373312. Its totient is φ = 1193798320.

The previous prime is 2745736627. The next prime is 2745736699. The reversal of 2745736642 is 2466375472.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 2745736592 and 2745736601.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2712673 + ... + 2713684.

It is an arithmetic number, because the mean of its divisors is an integer number (293023332).

Almost surely, 2^2745736642 is an apocalyptic number.

2745736642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2745736642 is a deficient number, since it is larger than the sum of its proper divisors (1942636670).

2745736642 is a wasteful number, since it uses less digits than its factorization.

2745736642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5426393.

The product of its digits is 1693440, while the sum is 46.

The square root of 2745736642 is about 52399.7771178466. Note that the first 3 decimals coincide. The cubic root of 2745736642 is about 1400.2952849937.

The spelling of 2745736642 in words is "two billion, seven hundred forty-five million, seven hundred thirty-six thousand, six hundred forty-two".