15749748061 has 2 divisors, whose sum is σ = 15749748062. Its totient is φ = 15749748060.

The previous prime is 15749747989. The next prime is 15749748067. The reversal of 15749748061 is 16084794751.

It is a happy number.

15749748061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9902240100 + 5847507961 = 99510^2 + 76469^2 .

It is a cyclic number.

It is not a de Polignac number, because 15749748061 - 2¹³ = 15749739869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15749748067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7874874030 + 7874874031.

It is an arithmetic number, because the mean of its divisors is an integer number (7874874031).

Almost surely, 2^15749748061 is an apocalyptic number.

It is an amenable number.

15749748061 is a deficient number, since it is larger than the sum of its proper divisors (1).

15749748061 is an equidigital number, since it uses as much as digits as its factorization.

15749748061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1693440, while the sum is 52.

The spelling of 15749748061 in words is "fifteen billion, seven hundred forty-nine million, seven hundred forty-eight thousand, sixty-one".