8390380651 has 12 divisors (see below), whose sum is σ = 8916581680. Its totient is φ = 7893624960.

The previous prime is 8390380643. The next prime is 8390380697. The reversal of 8390380651 is 1560830938.

It is not a de Polignac number, because 8390380651 - 2³ = 8390380643 is a prime.

It is a super-3 number, since 3×8390380651³ (a number of 31 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8390380598 and 8390380607.

It is not an unprimeable number, because it can be changed into a prime (8390386651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1010545 + ... + 1018813.

Almost surely, 2^8390380651 is an apocalyptic number.

8390380651 is a deficient number, since it is larger than the sum of its proper divisors (526201029).

8390380651 is a wasteful number, since it uses less digits than its factorization.

8390380651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11814 (or 11797 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 8390380651 is about 91599.0210155109. The cubic root of 8390380651 is about 2032.0164592043.

The spelling of 8390380651 in words is "eight billion, three hundred ninety million, three hundred eighty thousand, six hundred fifty-one".