69998758378 has 4 divisors (see below), whose sum is σ = 104998137570. Its totient is φ = 34999379188.

The previous prime is 69998758337. The next prime is 69998758387. The reversal of 69998758378 is 87385789996.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 44324144089 + 25674614289 = 210533^2 + 160233^2 .

It is a junction number, because it is equal to n+sod(n) for n = 69998758298 and 69998758307.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17499689593 + ... + 17499689596.

Almost surely, 2^69998758378 is an apocalyptic number.

69998758378 is a deficient number, since it is larger than the sum of its proper divisors (34999379192).

69998758378 is a wasteful number, since it uses less digits than its factorization.

69998758378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34999379191.

The product of its digits is 1646023680, while the sum is 79.

The spelling of 69998758378 in words is "sixty-nine billion, nine hundred ninety-eight million, seven hundred fifty-eight thousand, three hundred seventy-eight".