1026438376278 has 64 divisors (see below), whose sum is σ = 2351703195648. Its totient is φ = 292573723680.

The previous prime is 1026438376261. The next prime is 1026438376319. The reversal of 1026438376278 is 8726738346201.

It is a super-2 number, since 2×1026438376278² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81801201 + ... + 81813747.

It is an arithmetic number, because the mean of its divisors is an integer number (36745362432).

Almost surely, 2^{1026438376278} is an apocalyptic number.

1026438376278 is an abundant number, since it is smaller than the sum of its proper divisors (1325264819370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1026438376278 is a wasteful number, since it uses less digits than its factorization.

1026438376278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17017.

The product of its (nonzero) digits is 16257024, while the sum is 57.

The spelling of 1026438376278 in words is "one trillion, twenty-six billion, four hundred thirty-eight million, three hundred seventy-six thousand, two hundred seventy-eight".