2535396997849 has 9 divisors (see below), whose sum is σ = 2539436699709. Its totient is φ = 2531363719680.

The previous prime is 2535396997831. The next prime is 2535396997891. The reversal of 2535396997849 is 9487996935352.

The square root of 2535396997849 is 1592293.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 172818961225 + 2362578036624 = 415715^2 + 1537068^2 .

It is not a de Polignac number, because 2535396997849 - 2³⁹ = 1985641183961 is a prime.

It is a super-2 number, since 2×2535396997849² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2535396997349) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1835913139 + ... + 1835914519.

It is an arithmetic number, because the mean of its divisors is an integer number (282159633301).

Almost surely, 2^{2535396997849} is an apocalyptic number.

2535396997849 is the 1592293-rd square number.

2535396997849 is the 796147-th centered octagonal number.

It is an amenable number.

2535396997849 is a deficient number, since it is larger than the sum of its proper divisors (4039701860).

2535396997849 is an frugal number, since it uses more digits than its factorization.

2535396997849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5068 (or 2534 counting only the distinct ones).

The product of its digits is 3968092800, while the sum is 79.

The spelling of 2535396997849 in words is "two trillion, five hundred thirty-five billion, three hundred ninety-six million, nine hundred ninety-seven thousand, eight hundred forty-nine".