1993157043022 has 8 divisors (see below), whose sum is σ = 2991533366016. Its totient is φ = 995979254352.

The previous prime is 1993157043019. The next prime is 1993157043023. The reversal of 1993157043022 is 2203407513991.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1993157043023) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 299629423 + ... + 299636074.

It is an arithmetic number, because the mean of its divisors is an integer number (373941670752).

Almost surely, 2^{1993157043022} is an apocalyptic number.

1993157043022 is a deficient number, since it is larger than the sum of its proper divisors (998376322994).

1993157043022 is a wasteful number, since it uses less digits than its factorization.

1993157043022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599267162.

The product of its (nonzero) digits is 408240, while the sum is 46.

The spelling of 1993157043022 in words is "one trillion, nine hundred ninety-three billion, one hundred fifty-seven million, forty-three thousand, twenty-two".