74888478669 has 16 divisors (see below), whose sum is σ = 102698502080. Its totient is φ = 48505962240.

The previous prime is 74888478583. The next prime is 74888478677. The reversal of 74888478669 is 96687488847.

It is not a de Polignac number, because 74888478669 - 2⁹ = 74888478157 is a prime.

It is a super-2 number, since 2×74888478669² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74888478669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74888478569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411484 + ... + 564885.

It is an arithmetic number, because the mean of its divisors is an integer number (6418656380).

Almost surely, 2^74888478669 is an apocalyptic number.

It is an amenable number.

74888478669 is a deficient number, since it is larger than the sum of its proper divisors (27810023411).

74888478669 is a wasteful number, since it uses less digits than its factorization.

74888478669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977100.

The product of its digits is 1040449536, while the sum is 75.

The spelling of 74888478669 in words is "seventy-four billion, eight hundred eighty-eight million, four hundred seventy-eight thousand, six hundred sixty-nine".