74889097989798 has 16 divisors (see below), whose sum is σ = 149779592149680. Its totient is φ = 24962799968256.

The previous prime is 74889097989731. The next prime is 74889097989799. The reversal of 74889097989798 is 89798979098847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74889097989799) 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, 57475803 + ... + 58764326.

It is an arithmetic number, because the mean of its divisors is an integer number (9361224509355).

Almost surely, 2^{74889097989798} is an apocalyptic number.

74889097989798 is an abundant number, since it is smaller than the sum of its proper divisors (74890494159882).

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

74889097989798 is a wasteful number, since it uses less digits than its factorization.

74889097989798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116347511.

The product of its (nonzero) digits is 331838373888, while the sum is 102.

The spelling of 74889097989798 in words is "seventy-four trillion, eight hundred eighty-nine billion, ninety-seven million, nine hundred eighty-nine thousand, seven hundred ninety-eight".