1920690087846 has 32 divisors (see below), whose sum is σ = 3845920766208. Its totient is φ = 639473646240.

The previous prime is 1920690087821. The next prime is 1920690087851. The reversal of 1920690087846 is 6487800960291.

It is a self number, because there is not a number n which added to its sum of digits gives 1920690087846.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20965881 + ... + 21057291.

It is an arithmetic number, because the mean of its divisors is an integer number (120185023944).

Almost surely, 2^{1920690087846} is an apocalyptic number.

1920690087846 is an abundant number, since it is smaller than the sum of its proper divisors (1925230678362).

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

1920690087846 is a wasteful number, since it uses less digits than its factorization.

1920690087846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95516.

The product of its (nonzero) digits is 10450944, while the sum is 60.

The spelling of 1920690087846 in words is "one trillion, nine hundred twenty billion, six hundred ninety million, eighty-seven thousand, eight hundred forty-six".