49865079198 has 32 divisors (see below), whose sum is σ = 109360276992. Its totient is φ = 15032332800.

The previous prime is 49865079197. The next prime is 49865079241. The reversal of 49865079198 is 89197056894.

It is a super-2 number, since 2×49865079198² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49865079193) 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 15 ways as a sum of consecutive naturals, for example, 1944598 + ... + 1970073.

It is an arithmetic number, because the mean of its divisors is an integer number (3417508656).

Almost surely, 2^49865079198 is an apocalyptic number.

49865079198 is an abundant number, since it is smaller than the sum of its proper divisors (59495197794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49865079198 is a wasteful number, since it uses less digits than its factorization.

49865079198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3914880.

The product of its (nonzero) digits is 39191040, while the sum is 66.

The spelling of 49865079198 in words is "forty-nine billion, eight hundred sixty-five million, seventy-nine thousand, one hundred ninety-eight".