30813447077 has 4 divisors (see below), whose sum is σ = 35215368096. Its totient is φ = 26411526060.

The previous prime is 30813447061. The next prime is 30813447113. The reversal of 30813447077 is 77074431803.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 77074431803 = 7079 ⋅10887757.

It is a cyclic number.

It is not a de Polignac number, because 30813447077 - 2⁴ = 30813447061 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 (30813467077) 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, 2200960499 + ... + 2200960512.

It is an arithmetic number, because the mean of its divisors is an integer number (8803842024).

Almost surely, 2^30813447077 is an apocalyptic number.

It is an amenable number.

30813447077 is a deficient number, since it is larger than the sum of its proper divisors (4401921019).

30813447077 is an equidigital number, since it uses as much as digits as its factorization.

30813447077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4401921018.

The product of its (nonzero) digits is 395136, while the sum is 44.

The spelling of 30813447077 in words is "thirty billion, eight hundred thirteen million, four hundred forty-seven thousand, seventy-seven".