8070991388 has 6 divisors (see below), whose sum is σ = 14124234936. Its totient is φ = 4035495692.

The previous prime is 8070991343. The next prime is 8070991393. The reversal of 8070991388 is 8831990708.

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, 1008873920 + ... + 1008873927.

It is an arithmetic number, because the mean of its divisors is an integer number (2354039156).

Almost surely, 2^8070991388 is an apocalyptic number.

It is an amenable number.

8070991388 is a deficient number, since it is larger than the sum of its proper divisors (6053243548).

8070991388 is a wasteful number, since it uses less digits than its factorization.

8070991388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2017747851 (or 2017747849 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 53.

The square root of 8070991388 is about 89838.6964954412. The cubic root of 8070991388 is about 2005.8985355371.

The spelling of 8070991388 in words is "eight billion, seventy million, nine hundred ninety-one thousand, three hundred eighty-eight".