15428482661 has 2 divisors, whose sum is σ = 15428482662. Its totient is φ = 15428482660.

The previous prime is 15428482631. The next prime is 15428482757. The reversal of 15428482661 is 16628482451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9178789636 + 6249693025 = 95806^2 + 79055^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15428482661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15428482631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7714241330 + 7714241331.

It is an arithmetic number, because the mean of its divisors is an integer number (7714241331).

Almost surely, 2^15428482661 is an apocalyptic number.

It is an amenable number.

15428482661 is a deficient number, since it is larger than the sum of its proper divisors (1).

15428482661 is an equidigital number, since it uses as much as digits as its factorization.

15428482661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 737280, while the sum is 47.

The spelling of 15428482661 in words is "fifteen billion, four hundred twenty-eight million, four hundred eighty-two thousand, six hundred sixty-one".