30143949577 has 4 divisors (see below), whose sum is σ = 34450228096. Its totient is φ = 25837671060.

The previous prime is 30143949553. The next prime is 30143949581. The reversal of 30143949577 is 77594934103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30143949577 is a prime.

It is a super-2 number, since 2×30143949577² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30143949547) 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, 2153139249 + ... + 2153139262.

It is an arithmetic number, because the mean of its divisors is an integer number (8612557024).

Almost surely, 2^30143949577 is an apocalyptic number.

It is an amenable number.

30143949577 is a deficient number, since it is larger than the sum of its proper divisors (4306278519).

30143949577 is an equidigital number, since it uses as much as digits as its factorization.

30143949577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4306278518.

The product of its (nonzero) digits is 2857680, while the sum is 52.

The spelling of 30143949577 in words is "thirty billion, one hundred forty-three million, nine hundred forty-nine thousand, five hundred seventy-seven".