190435806854 has 4 divisors (see below), whose sum is σ = 285653710284. Its totient is φ = 95217903426.

The previous prime is 190435806823. The next prime is 190435806889. The reversal of 190435806854 is 458608534091.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 190435806796 and 190435806805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47608951712 + ... + 47608951715.

It is an arithmetic number, because the mean of its divisors is an integer number (71413427571).

Almost surely, 2^190435806854 is an apocalyptic number.

190435806854 is a deficient number, since it is larger than the sum of its proper divisors (95217903430).

190435806854 is an equidigital number, since it uses as much as digits as its factorization.

190435806854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95217903429.

The product of its (nonzero) digits is 4147200, while the sum is 53.

The spelling of 190435806854 in words is "one hundred ninety billion, four hundred thirty-five million, eight hundred six thousand, eight hundred fifty-four".