30727795449 has 16 divisors (see below), whose sum is σ = 44653557312. Its totient is φ = 18681586368.

The previous prime is 30727795447. The next prime is 30727795453. The reversal of 30727795449 is 94459772703.

It is a happy number.

It is not a de Polignac number, because 30727795449 - 2¹ = 30727795447 is a prime.

It is a super-2 number, since 2×30727795449² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30727795447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4743102 + ... + 4749575.

It is an arithmetic number, because the mean of its divisors is an integer number (2790847332).

Almost surely, 2^30727795449 is an apocalyptic number.

30727795449 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

30727795449 is a deficient number, since it is larger than the sum of its proper divisors (13925761863).

30727795449 is a wasteful number, since it uses less digits than its factorization.

30727795449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9492776.

The product of its (nonzero) digits is 13335840, while the sum is 57.

The spelling of 30727795449 in words is "thirty billion, seven hundred twenty-seven million, seven hundred ninety-five thousand, four hundred forty-nine".