354889689780 has 24 divisors (see below), whose sum is σ = 993691131552. Its totient is φ = 94637250592.

The previous prime is 354889689719. The next prime is 354889689839. The reversal of 354889689780 is 87986988453.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2957414022 + ... + 2957414141.

It is an arithmetic number, because the mean of its divisors is an integer number (41403797148).

Almost surely, 2^354889689780 is an apocalyptic number.

354889689780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

354889689780 is an abundant number, since it is smaller than the sum of its proper divisors (638801441772).

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

354889689780 is a wasteful number, since it uses less digits than its factorization.

354889689780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5914828175 (or 5914828173 counting only the distinct ones).

The product of its (nonzero) digits is 836075520, while the sum is 75.

The spelling of 354889689780 in words is "three hundred fifty-four billion, eight hundred eighty-nine million, six hundred eighty-nine thousand, seven hundred eighty".