349455671488 has 112 divisors (see below), whose sum is σ = 864777487104. Its totient is φ = 136117693440.

The previous prime is 349455671479. The next prime is 349455671531. The reversal of 349455671488 is 884176554943.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×349455671488² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30533095 + ... + 30544537.

Almost surely, 2^349455671488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 349455671488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432388743552).

349455671488 is an abundant number, since it is smaller than the sum of its proper divisors (515321815616).

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

349455671488 is a wasteful number, since it uses less digits than its factorization.

349455671488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17670 (or 17660 counting only the distinct ones).

The product of its digits is 116121600, while the sum is 64.

The spelling of 349455671488 in words is "three hundred forty-nine billion, four hundred fifty-five million, six hundred seventy-one thousand, four hundred eighty-eight".