2758857690798 has 64 divisors (see below), whose sum is σ = 6690980816640. Its totient is φ = 835662362400.

The previous prime is 2758857690793. The next prime is 2758857690847. The reversal of 2758857690798 is 8970967588572.

2758857690798 is a `hidden beast` number, since 27 + 588 + 5 + 7 + 6 + 9 + 0 + 7 + 9 + 8 = 666.

2758857690798 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2758857690798² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2758857690791) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 414793 + ... + 2385323.

It is an arithmetic number, because the mean of its divisors is an integer number (104546575260).

Almost surely, 2^{2758857690798} is an apocalyptic number.

2758857690798 is an abundant number, since it is smaller than the sum of its proper divisors (3932123125842).

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

2758857690798 is a wasteful number, since it uses less digits than its factorization.

2758857690798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1972910 (or 1972904 counting only the distinct ones).

The product of its (nonzero) digits is 4267468800, while the sum is 81.

The spelling of 2758857690798 in words is "two trillion, seven hundred fifty-eight billion, eight hundred fifty-seven million, six hundred ninety thousand, seven hundred ninety-eight".