70280831011 has 4 divisors (see below), whose sum is σ = 72547954624. Its totient is φ = 68013707400.

The previous prime is 70280830987. The next prime is 70280831029. The reversal of 70280831011 is 11013808207.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 70280831011 - 2⁵ = 70280830979 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 2267123581 = 70280831011 / (7 + 0 + 2 + 8 + 0 + 8 + 3 + 1 + 0 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70280831311) 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, 1133561760 + ... + 1133561821.

It is an arithmetic number, because the mean of its divisors is an integer number (18136988656).

Almost surely, 2^70280831011 is an apocalyptic number.

70280831011 is a deficient number, since it is larger than the sum of its proper divisors (2267123613).

70280831011 is a wasteful number, since it uses less digits than its factorization.

70280831011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2267123612.

The product of its (nonzero) digits is 2688, while the sum is 31.

The spelling of 70280831011 in words is "seventy billion, two hundred eighty million, eight hundred thirty-one thousand, eleven".