15745854797 has 2 divisors, whose sum is σ = 15745854798. Its totient is φ = 15745854796.

The previous prime is 15745854731. The next prime is 15745854823. The reversal of 15745854797 is 79745854751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10384832836 + 5361021961 = 101906^2 + 73219^2 .

It is a cyclic number.

It is not a de Polignac number, because 15745854797 - 2¹⁶ = 15745789261 is a prime.

It is a super-2 number, since 2×15745854797² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15745854197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7872927398 + 7872927399.

It is an arithmetic number, because the mean of its divisors is an integer number (7872927399).

Almost surely, 2^15745854797 is an apocalyptic number.

It is an amenable number.

15745854797 is a deficient number, since it is larger than the sum of its proper divisors (1).

15745854797 is an equidigital number, since it uses as much as digits as its factorization.

15745854797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 49392000, while the sum is 62.

The spelling of 15745854797 in words is "fifteen billion, seven hundred forty-five million, eight hundred fifty-four thousand, seven hundred ninety-seven".