49164380818 has 16 divisors (see below), whose sum is σ = 84284734464. Its totient is φ = 21069714240.

The previous prime is 49164380809. The next prime is 49164380819. The reversal of 49164380818 is 81808346194.

It is not an unprimeable number, because it can be changed into a prime (49164380819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 603471 + ... + 680077.

It is an arithmetic number, because the mean of its divisors is an integer number (5267795904).

Almost surely, 2^49164380818 is an apocalyptic number.

49164380818 is a deficient number, since it is larger than the sum of its proper divisors (35120353646).

49164380818 is a wasteful number, since it uses less digits than its factorization.

49164380818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122457.

The product of its (nonzero) digits is 1327104, while the sum is 52.

The spelling of 49164380818 in words is "forty-nine billion, one hundred sixty-four million, three hundred eighty thousand, eight hundred eighteen".