349656995981523 has 8 divisors (see below), whose sum is σ = 467071082742736. Its totient is φ = 232673786604000.

The previous prime is 349656995981477. The next prime is 349656995981609. The reversal of 349656995981523 is 325189599656943.

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

It is not a de Polignac number, because 349656995981523 - 2¹⁷ = 349656995850451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349656995981123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107719344028 + ... + 107719347273.

It is an arithmetic number, because the mean of its divisors is an integer number (58383885342842).

Almost surely, 2^{349656995981523} is an apocalyptic number.

349656995981523 is a deficient number, since it is larger than the sum of its proper divisors (117414086761213).

349656995981523 is a wasteful number, since it uses less digits than its factorization.

349656995981523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215438691845.

The product of its digits is 17006112000, while the sum is 84.

The spelling of 349656995981523 in words is "three hundred forty-nine trillion, six hundred fifty-six billion, nine hundred ninety-five million, nine hundred eighty-one thousand, five hundred twenty-three".