1921245058652 has 12 divisors (see below), whose sum is σ = 3362295260856. Its totient is φ = 960589269840.

The previous prime is 1921245058627. The next prime is 1921245058673. The reversal of 1921245058652 is 2568505421291.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1921245058652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8184674 + ... + 8416137.

It is an arithmetic number, because the mean of its divisors is an integer number (280191271738).

Almost surely, 2^{1921245058652} is an apocalyptic number.

It is an amenable number.

1921245058652 is a deficient number, since it is larger than the sum of its proper divisors (1441050202204).

1921245058652 is a wasteful number, since it uses less digits than its factorization.

1921245058652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16629748 (or 16629746 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 50.

The spelling of 1921245058652 in words is "one trillion, nine hundred twenty-one billion, two hundred forty-five million, fifty-eight thousand, six hundred fifty-two".