2106037920778 has 16 divisors (see below), whose sum is σ = 3446586767520. Its totient is φ = 957194714800.

The previous prime is 2106037920733. The next prime is 2106037920793. The reversal of 2106037920778 is 8770297306012.

It is a super-3 number, since 3×2106037920778³ (a number of 38 digits) contains 333 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, 4536088 + ... + 4978771.

It is an arithmetic number, because the mean of its divisors is an integer number (215411672970).

Almost surely, 2^{2106037920778} is an apocalyptic number.

2106037920778 is a deficient number, since it is larger than the sum of its proper divisors (1340548846742).

2106037920778 is a wasteful number, since it uses less digits than its factorization.

2106037920778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9524933.

The product of its (nonzero) digits is 1778112, while the sum is 52.

The spelling of 2106037920778 in words is "two trillion, one hundred six billion, thirty-seven million, nine hundred twenty thousand, seven hundred seventy-eight".