30490375061 has 4 divisors (see below), whose sum is σ = 30505113900. Its totient is φ = 30475636224.

The previous prime is 30490375057. The next prime is 30490375073. The reversal of 30490375061 is 16057309403.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8669472100 + 21820902961 = 93110^2 + 147719^2 .

It is a cyclic number.

It is not a de Polignac number, because 30490375061 - 2² = 30490375057 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 (30490375021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7366316 + ... + 7370453.

It is an arithmetic number, because the mean of its divisors is an integer number (7626278475).

Almost surely, 2^30490375061 is an apocalyptic number.

It is an amenable number.

30490375061 is a deficient number, since it is larger than the sum of its proper divisors (14738839).

30490375061 is a wasteful number, since it uses less digits than its factorization.

30490375061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14738838.

The product of its (nonzero) digits is 68040, while the sum is 38.

The spelling of 30490375061 in words is "thirty billion, four hundred ninety million, three hundred seventy-five thousand, sixty-one".