70998769559 has 4 divisors (see below), whose sum is σ = 73289052480. Its totient is φ = 68708486640.

The previous prime is 70998769537. The next prime is 70998769571. The reversal of 70998769559 is 95596789907.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95596789907 = 157 ⋅608896751.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70998769559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70998765559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1145141414 + ... + 1145141475.

It is an arithmetic number, because the mean of its divisors is an integer number (18322263120).

Almost surely, 2^70998769559 is an apocalyptic number.

70998769559 is a deficient number, since it is larger than the sum of its proper divisors (2290282921).

70998769559 is a wasteful number, since it uses less digits than its factorization.

70998769559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2290282920.

The product of its (nonzero) digits is 385786800, while the sum is 74.

The spelling of 70998769559 in words is "seventy billion, nine hundred ninety-eight million, seven hundred sixty-nine thousand, five hundred fifty-nine".