1685672070354 has 64 divisors (see below), whose sum is σ = 3767768361600. Its totient is φ = 558619877376.

The previous prime is 1685672070347. The next prime is 1685672070367. The reversal of 1685672070354 is 4530702765861.

1685672070354 is a `hidden beast` number, since 1 + 6 + 8 + 567 + 2 + 0 + 70 + 3 + 5 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 1685672070354.

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 31 ways as a sum of consecutive naturals, for example, 16405122 + ... + 16507554.

It is an arithmetic number, because the mean of its divisors is an integer number (58871380650).

Almost surely, 2^{1685672070354} is an apocalyptic number.

1685672070354 is an abundant number, since it is smaller than the sum of its proper divisors (2082096291246).

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

1685672070354 is a wasteful number, since it uses less digits than its factorization.

1685672070354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104216 (or 104210 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 54.

The spelling of 1685672070354 in words is "one trillion, six hundred eighty-five billion, six hundred seventy-two million, seventy thousand, three hundred fifty-four".