266898749870 has 8 divisors (see below), whose sum is σ = 480417749784. Its totient is φ = 106759499944.

The previous prime is 266898749851. The next prime is 266898749903. The reversal of 266898749870 is 78947898662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13344937484 + ... + 13344937503.

It is an arithmetic number, because the mean of its divisors is an integer number (60052218723).

Almost surely, 2^266898749870 is an apocalyptic number.

266898749870 is a deficient number, since it is larger than the sum of its proper divisors (213518999914).

266898749870 is a wasteful number, since it uses less digits than its factorization.

266898749870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26689874994.

The product of its (nonzero) digits is 585252864, while the sum is 74.

The spelling of 266898749870 in words is "two hundred sixty-six billion, eight hundred ninety-eight million, seven hundred forty-nine thousand, eight hundred seventy".