6936049457 has 4 divisors (see below), whose sum is σ = 7004723316. Its totient is φ = 6867375600.

The previous prime is 6936049447. The next prime is 6936049459. The reversal of 6936049457 is 7549406396.

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 5029504561 + 1906544896 = 70919^2 + 43664^2 .

It is a cyclic number.

It is not a de Polignac number, because 6936049457 - 2¹⁶ = 6935983921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6936049399 and 6936049408.

It is not an unprimeable number, because it can be changed into a prime (6936049459) 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, 34336778 + ... + 34336979.

It is an arithmetic number, because the mean of its divisors is an integer number (1751180829).

Almost surely, 2^6936049457 is an apocalyptic number.

It is an amenable number.

6936049457 is a deficient number, since it is larger than the sum of its proper divisors (68673859).

6936049457 is a wasteful number, since it uses less digits than its factorization.

6936049457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68673858.

The product of its (nonzero) digits is 4898880, while the sum is 53.

The square root of 6936049457 is about 83282.9481766826. The cubic root of 6936049457 is about 1907.0879719878.

The spelling of 6936049457 in words is "six billion, nine hundred thirty-six million, forty-nine thousand, four hundred fifty-seven".