4036249979257 has 4 divisors (see below), whose sum is σ = 4036258515700. Its totient is φ = 4036241442816.

The previous prime is 4036249979221. The next prime is 4036249979287. The reversal of 4036249979257 is 7529799426304.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1940070122496 + 2096179856761 = 1392864^2 + 1447819^2 .

It is a cyclic number.

It is not a de Polignac number, because 4036249979257 - 2¹⁵ = 4036249946489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4036249979192 and 4036249979201.

It is not an unprimeable number, because it can be changed into a prime (4036249979287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3514632 + ... + 4519417.

It is an arithmetic number, because the mean of its divisors is an integer number (1009064628925).

Almost surely, 2^{4036249979257} is an apocalyptic number.

It is an amenable number.

4036249979257 is a deficient number, since it is larger than the sum of its proper divisors (8536443).

4036249979257 is an equidigital number, since it uses as much as digits as its factorization.

4036249979257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8536442.

The product of its (nonzero) digits is 205752960, while the sum is 67.

The spelling of 4036249979257 in words is "four trillion, thirty-six billion, two hundred forty-nine million, nine hundred seventy-nine thousand, two hundred fifty-seven".