1926979376906 has 4 divisors (see below), whose sum is σ = 2890469065362. Its totient is φ = 963489688452.

The previous prime is 1926979376899. The next prime is 1926979376947. The reversal of 1926979376906 is 6096739796291.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1663390575625 + 263588801281 = 1289725^2 + 513409^2 .

It is a super-3 number, since 3×1926979376906³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 481744844225 + ... + 481744844228.

Almost surely, 2^{1926979376906} is an apocalyptic number.

1926979376906 is a deficient number, since it is larger than the sum of its proper divisors (963489688456).

1926979376906 is an equidigital number, since it uses as much as digits as its factorization.

1926979376906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963489688455.

The product of its (nonzero) digits is 416649744, while the sum is 74.

The spelling of 1926979376906 in words is "one trillion, nine hundred twenty-six billion, nine hundred seventy-nine million, three hundred seventy-six thousand, nine hundred six".