70108780811 has 4 divisors (see below), whose sum is σ = 70114665000. Its totient is φ = 70102896624.

The previous prime is 70108780741. The next prime is 70108780813. The reversal of 70108780811 is 11808780107.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70108780811 is a prime.

It is a super-2 number, since 2×70108780811² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70108780813) 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, 2924186 + ... + 2948063.

It is an arithmetic number, because the mean of its divisors is an integer number (17528666250).

Almost surely, 2^70108780811 is an apocalyptic number.

70108780811 is a deficient number, since it is larger than the sum of its proper divisors (5884189).

70108780811 is a wasteful number, since it uses less digits than its factorization.

70108780811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5884188.

The product of its (nonzero) digits is 25088, while the sum is 41.

The spelling of 70108780811 in words is "seventy billion, one hundred eight million, seven hundred eighty thousand, eight hundred eleven".