1968519970 has 16 divisors (see below), whose sum is σ = 3570386688. Its totient is φ = 781396720.

The previous prime is 1968519967. The next prime is 1968519977. The reversal of 1968519970 is 799158691.

It is not an unprimeable number, because it can be changed into a prime (1968519977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 750034 + ... + 752653.

It is an arithmetic number, because the mean of its divisors is an integer number (223149168).

Almost surely, 2^1968519970 is an apocalyptic number.

1968519970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1968519970 is a deficient number, since it is larger than the sum of its proper divisors (1601866718).

1968519970 is a wasteful number, since it uses less digits than its factorization.

1968519970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502825.

The product of its (nonzero) digits is 1224720, while the sum is 55.

The square root of 1968519970 is about 44368.0061530829. The cubic root of 1968519970 is about 1253.2756687638.

The spelling of 1968519970 in words is "one billion, nine hundred sixty-eight million, five hundred nineteen thousand, nine hundred seventy".