70812481811 has 4 divisors (see below), whose sum is σ = 73891285392. Its totient is φ = 67733678232.

The previous prime is 70812481799. The next prime is 70812481847. The reversal of 70812481811 is 11818421807.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11818421807 = 1747 ⋅6764981.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70812481811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70812481511) 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, 1539401756 + ... + 1539401801.

It is an arithmetic number, because the mean of its divisors is an integer number (18472821348).

Almost surely, 2^70812481811 is an apocalyptic number.

70812481811 is a deficient number, since it is larger than the sum of its proper divisors (3078803581).

70812481811 is a wasteful number, since it uses less digits than its factorization.

70812481811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078803580.

The product of its (nonzero) digits is 28672, while the sum is 41.

The spelling of 70812481811 in words is "seventy billion, eight hundred twelve million, four hundred eighty-one thousand, eight hundred eleven".