1026666774878 has 16 divisors (see below), whose sum is σ = 1601109180000. Its totient is φ = 493141616352.

The previous prime is 1026666774863. The next prime is 1026666774899. The reversal of 1026666774878 is 8784776666201.

It is a happy number.

It is a super-4 number, since 4×1026666774878⁴ (a number of 49 digits) contains 4444 as substring.

It is a congruent number.

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, 44463713 + ... + 44486796.

It is an arithmetic number, because the mean of its divisors is an integer number (100069323750).

Almost surely, 2^{1026666774878} is an apocalyptic number.

1026666774878 is a deficient number, since it is larger than the sum of its proper divisors (574442405122).

1026666774878 is a wasteful number, since it uses less digits than its factorization.

1026666774878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88950739.

The product of its (nonzero) digits is 227598336, while the sum is 68.

The spelling of 1026666774878 in words is "one trillion, twenty-six billion, six hundred sixty-six million, seven hundred seventy-four thousand, eight hundred seventy-eight".