70543653428 has 6 divisors (see below), whose sum is σ = 123451393506. Its totient is φ = 35271826712.

The previous prime is 70543653409. The next prime is 70543653431. The reversal of 70543653428 is 82435634507.

It can be written as a sum of positive squares in only one way, i.e., 70438221604 + 105431824 = 265402^2 + 10268^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8817956675 + ... + 8817956682.

It is an arithmetic number, because the mean of its divisors is an integer number (20575232251).

Almost surely, 2^70543653428 is an apocalyptic number.

It is an amenable number.

70543653428 is a deficient number, since it is larger than the sum of its proper divisors (52907740078).

70543653428 is a wasteful number, since it uses less digits than its factorization.

70543653428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17635913361 (or 17635913359 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 47.

The spelling of 70543653428 in words is "seventy billion, five hundred forty-three million, six hundred fifty-three thousand, four hundred twenty-eight".