30540795949 has 4 divisors (see below), whose sum is σ = 31117037436. Its totient is φ = 29964554464.

The previous prime is 30540795941. The next prime is 30540795997. The reversal of 30540795949 is 94959704503.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23690750724 + 6850045225 = 153918^2 + 82765^2 .

It is a cyclic number.

It is not a de Polignac number, because 30540795949 - 2³ = 30540795941 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30540795949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30540795941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288120664 + ... + 288120769.

It is an arithmetic number, because the mean of its divisors is an integer number (7779259359).

Almost surely, 2^30540795949 is an apocalyptic number.

It is an amenable number.

30540795949 is a deficient number, since it is larger than the sum of its proper divisors (576241487).

30540795949 is an equidigital number, since it uses as much as digits as its factorization.

30540795949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576241486.

The product of its (nonzero) digits is 6123600, while the sum is 55.

The spelling of 30540795949 in words is "thirty billion, five hundred forty million, seven hundred ninety-five thousand, nine hundred forty-nine".