1920101986 has 16 divisors (see below), whose sum is σ = 3143308608. Its totient is φ = 872406000.

The previous prime is 1920101969. The next prime is 1920101999. The reversal of 1920101986 is 6891010291.

It is a super-2 number, since 2×1920101986² = 7373583273282288392, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39016 + ... + 73228.

It is an arithmetic number, because the mean of its divisors is an integer number (196456788).

Almost surely, 2^1920101986 is an apocalyptic number.

1920101986 is a deficient number, since it is larger than the sum of its proper divisors (1223206622).

1920101986 is a wasteful number, since it uses less digits than its factorization.

1920101986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36777.

The product of its (nonzero) digits is 7776, while the sum is 37.

The square root of 1920101986 is about 43818.9683356420. The cubic root of 1920101986 is about 1242.9150085346.

The spelling of 1920101986 in words is "one billion, nine hundred twenty million, one hundred one thousand, nine hundred eighty-six".