73978498842 has 8 divisors (see below), whose sum is σ = 147956997696. Its totient is φ = 24659499612.

The previous prime is 73978498813. The next prime is 73978498843. The reversal of 73978498842 is 24889487937.

It is a sphenic number, since it is the product of 3 distinct primes.

73978498842 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (73978498843) 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 3 ways as a sum of consecutive naturals, for example, 6164874898 + ... + 6164874909.

It is an arithmetic number, because the mean of its divisors is an integer number (18494624712).

Almost surely, 2^73978498842 is an apocalyptic number.

73978498842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

73978498842 is a wasteful number, since it uses less digits than its factorization.

73978498842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12329749812.

The product of its digits is 195084288, while the sum is 69.

The spelling of 73978498842 in words is "seventy-three billion, nine hundred seventy-eight million, four hundred ninety-eight thousand, eight hundred forty-two".