1640907570028 has 24 divisors (see below), whose sum is σ = 2956553457984. Its totient is φ = 796288608000.

The previous prime is 1640907569989. The next prime is 1640907570079. The reversal of 1640907570028 is 8200757090461.

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, 13765108 + ... + 13883803.

It is an arithmetic number, because the mean of its divisors is an integer number (123189727416).

Almost surely, 2^{1640907570028} is an apocalyptic number.

It is an amenable number.

1640907570028 is a deficient number, since it is larger than the sum of its proper divisors (1315645887956).

1640907570028 is a wasteful number, since it uses less digits than its factorization.

1640907570028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27649353 (or 27649351 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 1640907570028 in words is "one trillion, six hundred forty billion, nine hundred seven million, five hundred seventy thousand, twenty-eight".