4077409691 has 4 divisors (see below), whose sum is σ = 4081246512. Its totient is φ = 4073572872.

The previous prime is 4077409673. The next prime is 4077409729. The reversal of 4077409691 is 1969047704.

It is a happy number.

4077409691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4077409691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4077409601) 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, 1916816 + ... + 1918941.

It is an arithmetic number, because the mean of its divisors is an integer number (1020311628).

Almost surely, 2^4077409691 is an apocalyptic number.

4077409691 is a deficient number, since it is larger than the sum of its proper divisors (3836821).

4077409691 is a wasteful number, since it uses less digits than its factorization.

4077409691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3836820.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 4077409691 is about 63854.5980411748. The cubic root of 4077409691 is about 1597.5757154820.

The spelling of 4077409691 in words is "four billion, seventy-seven million, four hundred nine thousand, six hundred ninety-one".