53878063449 has 16 divisors (see below), whose sum is σ = 84318823808. Its totient is φ = 29955370752.

The previous prime is 53878063439. The next prime is 53878063483. The reversal of 53878063449 is 94436087835.

It is not a de Polignac number, because 53878063449 - 2⁷ = 53878063321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53878063439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34669792 + ... + 34671345.

It is an arithmetic number, because the mean of its divisors is an integer number (5269926488).

Almost surely, 2^53878063449 is an apocalyptic number.

It is an amenable number.

53878063449 is a deficient number, since it is larger than the sum of its proper divisors (30440760359).

53878063449 is a wasteful number, since it uses less digits than its factorization.

53878063449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69341184.

The product of its (nonzero) digits is 17418240, while the sum is 57.

The spelling of 53878063449 in words is "fifty-three billion, eight hundred seventy-eight million, sixty-three thousand, four hundred forty-nine".