347899347432 has 1280 divisors, whose sum is σ = 1348868505600. Its totient is φ = 81129185280.

The previous prime is 347899347407. The next prime is 347899347461. The reversal of 347899347432 is 234743998743.

347899347432 is a `hidden beast` number, since 3 + 4 + 78 + 9 + 93 + 47 + 432 = 666.

It is a super-2 number, since 2×347899347432² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 347899347432.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 1821462457 + ... + 1821462647.

It is an arithmetic number, because the mean of its divisors is an integer number (1053803520).

Almost surely, 2^347899347432 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 347899347432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (674434252800).

347899347432 is an abundant number, since it is smaller than the sum of its proper divisors (1000969158168).

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

347899347432 is a wasteful number, since it uses less digits than its factorization.

347899347432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348 (or 335 counting only the distinct ones).

The product of its digits is 109734912, while the sum is 63.

The spelling of 347899347432 in words is "three hundred forty-seven billion, eight hundred ninety-nine million, three hundred forty-seven thousand, four hundred thirty-two".