1682391061620 has 120 divisors (see below), whose sum is σ = 5555498071200. Its totient is φ = 425025102528.

The previous prime is 1682391061619. The next prime is 1682391061721. The reversal of 1682391061620 is 261601932861.

1682391061620 is a `hidden beast` number, since 1 + 6 + 8 + 2 + 3 + 9 + 1 + 0 + 616 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 27298510 + ... + 27360069.

It is an arithmetic number, because the mean of its divisors is an integer number (46295817260).

Almost surely, 2^{1682391061620} is an apocalyptic number.

1682391061620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1682391061620 is an abundant number, since it is smaller than the sum of its proper divisors (3873107009580).

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

1682391061620 is a wasteful number, since it uses less digits than its factorization.

1682391061620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54658619 (or 54658608 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 1682391061620 in words is "one trillion, six hundred eighty-two billion, three hundred ninety-one million, sixty-one thousand, six hundred twenty".