15394297741 has 2 divisors, whose sum is σ = 15394297742. Its totient is φ = 15394297740.

The previous prime is 15394297733. The next prime is 15394297747. The reversal of 15394297741 is 14779249351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15358644900 + 35652841 = 123930^2 + 5971^2 .

It is a cyclic number.

It is not a de Polignac number, because 15394297741 - 2³ = 15394297733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15394297747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7697148870 + 7697148871.

It is an arithmetic number, because the mean of its divisors is an integer number (7697148871).

Almost surely, 2^15394297741 is an apocalyptic number.

It is an amenable number.

15394297741 is a deficient number, since it is larger than the sum of its proper divisors (1).

15394297741 is an equidigital number, since it uses as much as digits as its factorization.

15394297741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1905120, while the sum is 52.

The spelling of 15394297741 in words is "fifteen billion, three hundred ninety-four million, two hundred ninety-seven thousand, seven hundred forty-one".