1651068916989 has 16 divisors (see below), whose sum is σ = 2218647366144. Its totient is φ = 1092104702000.

The previous prime is 1651068916979. The next prime is 1651068917009. The reversal of 1651068916989 is 9896198601561.

It is a cyclic number.

It is not a de Polignac number, because 1651068916989 - 2⁵ = 1651068916957 is a prime.

It is a super-2 number, since 2×1651068916989² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1651068916919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1710382 + ... + 2495504.

It is an arithmetic number, because the mean of its divisors is an integer number (138665460384).

Almost surely, 2^{1651068916989} is an apocalyptic number.

It is an amenable number.

1651068916989 is a deficient number, since it is larger than the sum of its proper divisors (567578449155).

1651068916989 is a wasteful number, since it uses less digits than its factorization.

1651068916989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790608.

The product of its (nonzero) digits is 50388480, while the sum is 69.

The spelling of 1651068916989 in words is "one trillion, six hundred fifty-one billion, sixty-eight million, nine hundred sixteen thousand, nine hundred eighty-nine".