3913564989 has 12 divisors (see below), whose sum is σ = 5228579936. Its totient is φ = 2603803368.

The previous prime is 3913564969. The next prime is 3913565003. The reversal of 3913564989 is 9894653193.

It is not a de Polignac number, because 3913564989 - 2¹¹ = 3913562941 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3913564969) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3107842 + ... + 3109100.

Almost surely, 2^3913564989 is an apocalyptic number.

It is an amenable number.

3913564989 is a deficient number, since it is larger than the sum of its proper divisors (1315014947).

3913564989 is an frugal number, since it uses more digits than its factorization.

3913564989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3344 (or 2085 counting only the distinct ones).

The product of its digits is 6298560, while the sum is 57.

The square root of 3913564989 is about 62558.4925409812. The cubic root of 3913564989 is about 1575.8837722795.

The spelling of 3913564989 in words is "three billion, nine hundred thirteen million, five hundred sixty-four thousand, nine hundred eighty-nine".