190020977814 has 8 divisors (see below), whose sum is σ = 380041955640. Its totient is φ = 63340325936.

The previous prime is 190020977759. The next prime is 190020977821. The reversal of 190020977814 is 418779020091.

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

190020977814 is an admirable number.

It is a super-2 number, since 2×190020977814² (a number of 23 digits) contains 22 as substring.

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, 15835081479 + ... + 15835081490.

It is an arithmetic number, because the mean of its divisors is an integer number (47505244455).

Almost surely, 2^190020977814 is an apocalyptic number.

190020977814 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

190020977814 is a wasteful number, since it uses less digits than its factorization.

190020977814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31670162974.

The product of its (nonzero) digits is 254016, while the sum is 48.

The spelling of 190020977814 in words is "one hundred ninety billion, twenty million, nine hundred seventy-seven thousand, eight hundred fourteen".