349146899890 has 32 divisors (see below), whose sum is σ = 631619389440. Its totient is φ = 138958410624.

The previous prime is 349146899887. The next prime is 349146899891. The reversal of 349146899890 is 98998641943.

It is not an unprimeable number, because it can be changed into a prime (349146899891) 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 15 ways as a sum of consecutive naturals, for example, 3728766 + ... + 3821254.

It is an arithmetic number, because the mean of its divisors is an integer number (19738105920).

Almost surely, 2^349146899890 is an apocalyptic number.

349146899890 is a deficient number, since it is larger than the sum of its proper divisors (282472489550).

349146899890 is a wasteful number, since it uses less digits than its factorization.

349146899890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94386.

The product of its (nonzero) digits is 120932352, while the sum is 70.

The spelling of 349146899890 in words is "three hundred forty-nine billion, one hundred forty-six million, eight hundred ninety-nine thousand, eight hundred ninety".