349918008978 has 8 divisors (see below), whose sum is σ = 699836017968. Its totient is φ = 116639336324.

The previous prime is 349918008943. The next prime is 349918008991. The reversal of 349918008978 is 879800819943.

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

349918008978 is an admirable number.

It is a super-2 number, since 2×349918008978² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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, 29159834076 + ... + 29159834087.

It is an arithmetic number, because the mean of its divisors is an integer number (87479502246).

Almost surely, 2^349918008978 is an apocalyptic number.

349918008978 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.

349918008978 is a wasteful number, since it uses less digits than its factorization.

349918008978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58319668168.

The product of its (nonzero) digits is 31352832, while the sum is 66.

The spelling of 349918008978 in words is "three hundred forty-nine billion, nine hundred eighteen million, eight thousand, nine hundred seventy-eight".