1945973394680 has 64 divisors (see below), whose sum is σ = 5050697379840. Its totient is φ = 660955439232.

The previous prime is 1945973394671. The next prime is 1945973394719. The reversal of 1945973394680 is 864933795491.

It is a self number, because there is not a number n which added to its sum of digits gives 1945973394680.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32446232 + ... + 32506151.

It is an arithmetic number, because the mean of its divisors is an integer number (78917146560).

Almost surely, 2^{1945973394680} is an apocalyptic number.

1945973394680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1945973394680 is an abundant number, since it is smaller than the sum of its proper divisors (3104723985160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1945973394680 is a wasteful number, since it uses less digits than its factorization.

1945973394680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64952508 (or 64952504 counting only the distinct ones).

The product of its (nonzero) digits is 176359680, while the sum is 68.

The spelling of 1945973394680 in words is "one trillion, nine hundred forty-five billion, nine hundred seventy-three million, three hundred ninety-four thousand, six hundred eighty".