349467065991 has 12 divisors (see below), whose sum is σ = 521069174080. Its totient is φ = 225462623040.

The previous prime is 349467065971. The next prime is 349467065993. The reversal of 349467065991 is 199560764943.

349467065991 is a `hidden beast` number, since 3 + 494 + 6 + 7 + 0 + 6 + 59 + 91 = 666.

It is not a de Polignac number, because 349467065991 - 2⁷ = 349467065863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349467065993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 626284786 + ... + 626285343.

Almost surely, 2^349467065991 is an apocalyptic number.

349467065991 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

349467065991 is a deficient number, since it is larger than the sum of its proper divisors (171602108089).

349467065991 is a wasteful number, since it uses less digits than its factorization.

349467065991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252570166 (or 1252570163 counting only the distinct ones).

The product of its (nonzero) digits is 44089920, while the sum is 63.

The spelling of 349467065991 in words is "three hundred forty-nine billion, four hundred sixty-seven million, sixty-five thousand, nine hundred ninety-one".