53909477449 has 8 divisors (see below), whose sum is σ = 53963636000. Its totient is φ = 53855347392.

The previous prime is 53909477437. The next prime is 53909477467. The reversal of 53909477449 is 94477490935.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53909477449 - 2²⁷ = 53775259721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53909417449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6136342 + ... + 6145120.

It is an arithmetic number, because the mean of its divisors is an integer number (6745454500).

Almost surely, 2^53909477449 is an apocalyptic number.

It is an amenable number.

53909477449 is a deficient number, since it is larger than the sum of its proper divisors (54158551).

53909477449 is a wasteful number, since it uses less digits than its factorization.

53909477449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14247.

The product of its (nonzero) digits is 34292160, while the sum is 61.

The spelling of 53909477449 in words is "fifty-three billion, nine hundred nine million, four hundred seventy-seven thousand, four hundred forty-nine".