30777760148 has 12 divisors (see below), whose sum is σ = 54355219380. Its totient is φ = 15247697472.

The previous prime is 30777760133. The next prime is 30777760151. The reversal of 30777760148 is 84106777703.

It can be written as a sum of positive squares in 2 ways, for example, as 20598564484 + 10179195664 = 143522^2 + 100892^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30777760096 and 30777760105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35295161 + ... + 35296032.

It is an arithmetic number, because the mean of its divisors is an integer number (4529601615).

Almost surely, 2^30777760148 is an apocalyptic number.

It is an amenable number.

30777760148 is a deficient number, since it is larger than the sum of its proper divisors (23577459232).

30777760148 is a wasteful number, since it uses less digits than its factorization.

30777760148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70591306 (or 70591304 counting only the distinct ones).

The product of its (nonzero) digits is 1382976, while the sum is 50.

The spelling of 30777760148 in words is "thirty billion, seven hundred seventy-seven million, seven hundred sixty thousand, one hundred forty-eight".