30331376447 has 6 divisors (see below), whose sum is σ = 31173300648. Its totient is φ = 29511608184.

The previous prime is 30331376417. The next prime is 30331376479. The reversal of 30331376447 is 74467313303.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-30331376447 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 (30331376417) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11076563 + ... + 11079300.

It is an arithmetic number, because the mean of its divisors is an integer number (5195550108).

Almost surely, 2^30331376447 is an apocalyptic number.

30331376447 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

30331376447 is a deficient number, since it is larger than the sum of its proper divisors (841924201).

30331376447 is an equidigital number, since it uses as much as digits as its factorization.

30331376447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22155937 (or 22155900 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 41.

The spelling of 30331376447 in words is "thirty billion, three hundred thirty-one million, three hundred seventy-six thousand, four hundred forty-seven".