15495928549 has 2 divisors, whose sum is σ = 15495928550. Its totient is φ = 15495928548.

The previous prime is 15495928501. The next prime is 15495928571. The reversal of 15495928549 is 94582959451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14155050625 + 1340877924 = 118975^2 + 36618^2 .

It is a cyclic number.

It is not a de Polignac number, because 15495928549 - 2¹⁷ = 15495797477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15495928579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7747964274 + 7747964275.

It is an arithmetic number, because the mean of its divisors is an integer number (7747964275).

Almost surely, 2^15495928549 is an apocalyptic number.

It is an amenable number.

15495928549 is a deficient number, since it is larger than the sum of its proper divisors (1).

15495928549 is an equidigital number, since it uses as much as digits as its factorization.

15495928549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328000, while the sum is 61.

The spelling of 15495928549 in words is "fifteen billion, four hundred ninety-five million, nine hundred twenty-eight thousand, five hundred forty-nine".