1960985999 has 16 divisors (see below), whose sum is σ = 2259724800. Its totient is φ = 1666954080.

The previous prime is 1960985993. The next prime is 1960986019. The reversal of 1960985999 is 9995890691.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1960985999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1960985993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 458957 + ... + 463209.

It is an arithmetic number, because the mean of its divisors is an integer number (141232800).

Almost surely, 2^1960985999 is an apocalyptic number.

1960985999 is a deficient number, since it is larger than the sum of its proper divisors (298738801).

1960985999 is a wasteful number, since it uses less digits than its factorization.

1960985999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4790.

The product of its (nonzero) digits is 14171760, while the sum is 65.

The square root of 1960985999 is about 44283.0215658327. The cubic root of 1960985999 is about 1251.6747682389.

The spelling of 1960985999 in words is "one billion, nine hundred sixty million, nine hundred eighty-five thousand, nine hundred ninety-nine".