1958964645 has 32 divisors (see below), whose sum is σ = 3537198720. Its totient is φ = 917047040.

The previous prime is 1958964643. The next prime is 1958964647. The reversal of 1958964645 is 5464698591.

It is an interprime number because it is at equal distance from previous prime (1958964643) and next prime (1958964647).

It is not a de Polignac number, because 1958964645 - 2¹ = 1958964643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1958964643) 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 31 ways as a sum of consecutive naturals, for example, 199914 + ... + 209483.

It is an arithmetic number, because the mean of its divisors is an integer number (110537460).

Almost surely, 2^1958964645 is an apocalyptic number.

1958964645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1958964645 is a deficient number, since it is larger than the sum of its proper divisors (1578234075).

1958964645 is a wasteful number, since it uses less digits than its factorization.

1958964645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409445.

The product of its digits is 9331200, while the sum is 57.

The square root of 1958964645 is about 44260.1925549359. The cubic root of 1958964645 is about 1251.2445513956.

The spelling of 1958964645 in words is "one billion, nine hundred fifty-eight million, nine hundred sixty-four thousand, six hundred forty-five".