745835851664 has 20 divisors (see below), whose sum is σ = 1445287371804. Its totient is φ = 372858465408.

The previous prime is 745835851547. The next prime is 745835851697. The reversal of 745835851664 is 466158538547.

It can be written as a sum of positive squares in 2 ways, for example, as 475548160000 + 270287691664 = 689600^2 + 519892^2 .

It is a super-2 number, since 2×745835851664² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 745835851597 and 745835851606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3612707 + ... + 3813570.

Almost surely, 2^745835851664 is an apocalyptic number.

It is an amenable number.

745835851664 is a deficient number, since it is larger than the sum of its proper divisors (699451520140).

745835851664 is a wasteful number, since it uses less digits than its factorization.

745835851664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7432562 (or 7432556 counting only the distinct ones).

The product of its digits is 96768000, while the sum is 62.

The spelling of 745835851664 in words is "seven hundred forty-five billion, eight hundred thirty-five million, eight hundred fifty-one thousand, six hundred sixty-four".