54349788949 has 4 divisors (see below), whose sum is σ = 54353821536. Its totient is φ = 54345756364.

The previous prime is 54349788931. The next prime is 54349788959. The reversal of 54349788949 is 94988794345.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94988794345 = 5 ⋅18997758869.

It is a cyclic number.

It is not a de Polignac number, because 54349788949 - 2¹⁷ = 54349657877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54349788959) 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, 1996009 + ... + 2023054.

It is an arithmetic number, because the mean of its divisors is an integer number (13588455384).

Almost surely, 2^54349788949 is an apocalyptic number.

It is an amenable number.

54349788949 is a deficient number, since it is larger than the sum of its proper divisors (4032587).

54349788949 is a wasteful number, since it uses less digits than its factorization.

54349788949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4032586.

The product of its digits is 313528320, while the sum is 70.

The spelling of 54349788949 in words is "fifty-four billion, three hundred forty-nine million, seven hundred eighty-eight thousand, nine hundred forty-nine".