1968977098 has 24 divisors (see below), whose sum is σ = 3358327140. Its totient is φ = 864124800.

The previous prime is 1968977051. The next prime is 1968977113. The reversal of 1968977098 is 8907798691.

It can be written as a sum of positive squares in 2 ways, for example, as 1717024969 + 251952129 = 41437^2 + 15873^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133263 + ... + 147298.

Almost surely, 2^1968977098 is an apocalyptic number.

1968977098 is a deficient number, since it is larger than the sum of its proper divisors (1389350042).

1968977098 is a wasteful number, since it uses less digits than its factorization.

1968977098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280614 (or 280603 counting only the distinct ones).

The product of its (nonzero) digits is 13716864, while the sum is 64.

The square root of 1968977098 is about 44373.1574039982. The cubic root of 1968977098 is about 1253.3726727850.

The spelling of 1968977098 in words is "one billion, nine hundred sixty-eight million, nine hundred seventy-seven thousand, ninety-eight".