30777802893 has 12 divisors (see below), whose sum is σ = 44476871868. Its totient is φ = 20509283520.

The previous prime is 30777802883. The next prime is 30777802919. The reversal of 30777802893 is 39820877703.

It can be written as a sum of positive squares in 2 ways, for example, as 18801345924 + 11976456969 = 137118^2 + 109437^2 .

It is not a de Polignac number, because 30777802893 - 2⁶ = 30777802829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30777802883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 749880 + ... + 789857.

It is an arithmetic number, because the mean of its divisors is an integer number (3706405989).

Almost surely, 2^30777802893 is an apocalyptic number.

It is an amenable number.

30777802893 is a deficient number, since it is larger than the sum of its proper divisors (13699068975).

30777802893 is a wasteful number, since it uses less digits than its factorization.

30777802893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541964 (or 1541961 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 54.

The spelling of 30777802893 in words is "thirty billion, seven hundred seventy-seven million, eight hundred two thousand, eight hundred ninety-three".