30757272949 has 16 divisors (see below), whose sum is σ = 34506239040. Its totient is φ = 27229357440.

The previous prime is 30757272937. The next prime is 30757272977. The reversal of 30757272949 is 94927275703.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 30757272949 - 2⁹ = 30757272437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30757272949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30757272149) 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, 457587 + ... + 520480.

It is an arithmetic number, because the mean of its divisors is an integer number (2156639940).

Almost surely, 2^30757272949 is an apocalyptic number.

It is an amenable number.

30757272949 is a deficient number, since it is larger than the sum of its proper divisors (3748966091).

30757272949 is a wasteful number, since it uses less digits than its factorization.

30757272949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978180.

The product of its (nonzero) digits is 6667920, while the sum is 55.

The spelling of 30757272949 in words is "thirty billion, seven hundred fifty-seven million, two hundred seventy-two thousand, nine hundred forty-nine".