28603526461 has 2 divisors, whose sum is σ = 28603526462. Its totient is φ = 28603526460.

The previous prime is 28603526411. The next prime is 28603526491. The reversal of 28603526461 is 16462530682.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26473242436 + 2130284025 = 162706^2 + 46155^2 .

It is a cyclic number.

It is not a de Polignac number, because 28603526461 - 2¹¹ = 28603524413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28603526411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14301763230 + 14301763231.

It is an arithmetic number, because the mean of its divisors is an integer number (14301763231).

Almost surely, 2^28603526461 is an apocalyptic number.

It is an amenable number.

28603526461 is a deficient number, since it is larger than the sum of its proper divisors (1).

28603526461 is an equidigital number, since it uses as much as digits as its factorization.

28603526461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 28603526461 in words is "twenty-eight billion, six hundred three million, five hundred twenty-six thousand, four hundred sixty-one".