69544797428 has 12 divisors (see below), whose sum is σ = 121705605252. Its totient is φ = 34771767360.

The previous prime is 69544797407. The next prime is 69544797431. The reversal of 69544797428 is 82479744596.

It can be written as a sum of positive squares in 2 ways, for example, as 60293820304 + 9250977124 = 245548^2 + 96182^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162026 + ... + 406622.

It is an arithmetic number, because the mean of its divisors is an integer number (10142133771).

Almost surely, 2^69544797428 is an apocalyptic number.

It is an amenable number.

69544797428 is a deficient number, since it is larger than the sum of its proper divisors (52160807824).

69544797428 is a wasteful number, since it uses less digits than its factorization.

69544797428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315682 (or 315680 counting only the distinct ones).

The product of its digits is 121927680, while the sum is 65.

The spelling of 69544797428 in words is "sixty-nine billion, five hundred forty-four million, seven hundred ninety-seven thousand, four hundred twenty-eight".