30498145057 has 16 divisors (see below), whose sum is σ = 31389512400. Its totient is φ = 29623007232.

The previous prime is 30498145039. The next prime is 30498145063. The reversal of 30498145057 is 75054189403.

It can be written as a sum of positive squares in 8 ways, for example, as 15015071296 + 15483073761 = 122536^2 + 124431^2 .

It is a cyclic number.

It is not a de Polignac number, because 30498145057 - 2¹¹ = 30498143009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30498144998 and 30498145016.

It is not an unprimeable number, because it can be changed into a prime (30498145037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1283319 + ... + 1306867.

It is an arithmetic number, because the mean of its divisors is an integer number (1961844525).

Almost surely, 2^30498145057 is an apocalyptic number.

It is an amenable number.

30498145057 is a deficient number, since it is larger than the sum of its proper divisors (891367343).

30498145057 is a wasteful number, since it uses less digits than its factorization.

30498145057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23892.

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 30498145057 in words is "thirty billion, four hundred ninety-eight million, one hundred forty-five thousand, fifty-seven".