49394665898 has 16 divisors (see below), whose sum is σ = 74837471400. Its totient is φ = 24448920000.

The previous prime is 49394665897. The next prime is 49394665913. The reversal of 49394665898 is 89856649394.

It can be written as a sum of positive squares in 4 ways, for example, as 45452960809 + 3941705089 = 213197^2 + 62783^2 .

It is not an unprimeable number, because it can be changed into a prime (49394665897) 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, 1580528 + ... + 1611476.

Almost surely, 2^49394665898 is an apocalyptic number.

49394665898 is a deficient number, since it is larger than the sum of its proper divisors (25442805502).

49394665898 is a wasteful number, since it uses less digits than its factorization.

49394665898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38953.

The product of its digits is 403107840, while the sum is 71.

The spelling of 49394665898 in words is "forty-nine billion, three hundred ninety-four million, six hundred sixty-five thousand, eight hundred ninety-eight".