1640427932486 has 32 divisors (see below), whose sum is σ = 2878281170688. Its totient is φ = 686518973280.

The previous prime is 1640427932471. The next prime is 1640427932491. The reversal of 1640427932486 is 6842397240461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2081801 + ... + 2759483.

It is an arithmetic number, because the mean of its divisors is an integer number (89946286584).

Almost surely, 2^{1640427932486} is an apocalyptic number.

1640427932486 is a deficient number, since it is larger than the sum of its proper divisors (1237853238202).

1640427932486 is a wasteful number, since it uses less digits than its factorization.

1640427932486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681756.

The product of its (nonzero) digits is 13934592, while the sum is 56.

The spelling of 1640427932486 in words is "one trillion, six hundred forty billion, four hundred twenty-seven million, nine hundred thirty-two thousand, four hundred eighty-six".