4057969491 has 6 divisors (see below), whose sum is σ = 5861511500. Its totient is φ = 2705312988.

The previous prime is 4057969481. The next prime is 4057969493. The reversal of 4057969491 is 1949697504.

It is a happy number.

4057969491 is a `hidden beast` number, since 4 + 0 + 579 + 69 + 4 + 9 + 1 = 666.

It is not a de Polignac number, because 4057969491 - 2²¹ = 4055872339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4057969493) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 225442741 + ... + 225442758.

Almost surely, 2^4057969491 is an apocalyptic number.

4057969491 is a deficient number, since it is larger than the sum of its proper divisors (1803542009).

4057969491 is a wasteful number, since it uses less digits than its factorization.

4057969491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450885505 (or 450885502 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 54.

The square root of 4057969491 is about 63702.1937691317. The cubic root of 4057969491 is about 1595.0327055069.

The spelling of 4057969491 in words is "four billion, fifty-seven million, nine hundred sixty-nine thousand, four hundred ninety-one".