49366721945 has 32 divisors (see below), whose sum is σ = 62938598400. Its totient is φ = 37094644224.

The previous prime is 49366721933. The next prime is 49366721981. The reversal of 49366721945 is 54912766394.

It is a cyclic number.

It is not a de Polignac number, because 49366721945 - 2¹⁸ = 49366459801 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1909616 + ... + 1935294.

It is an arithmetic number, because the mean of its divisors is an integer number (1966831200).

Almost surely, 2^49366721945 is an apocalyptic number.

It is an amenable number.

49366721945 is a deficient number, since it is larger than the sum of its proper divisors (13571876455).

49366721945 is a wasteful number, since it uses less digits than its factorization.

49366721945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26009.

The product of its digits is 9797760, while the sum is 56.

The spelling of 49366721945 in words is "forty-nine billion, three hundred sixty-six million, seven hundred twenty-one thousand, nine hundred forty-five".