26570840949378 has 48 divisors (see below), whose sum is σ = 62804610662976. Its totient is φ = 8051666807520.

The previous prime is 26570840949347. The next prime is 26570840949379. The reversal of 26570840949378 is 87394904807562.

26570840949378 is a `hidden beast` number, since 2 + 6 + 57 + 0 + 84 + 0 + 9 + 493 + 7 + 8 = 666.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26570840949379) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15405876 + ... + 17043552.

It is an arithmetic number, because the mean of its divisors is an integer number (1308429388812).

Almost surely, 2^{26570840949378} is an apocalyptic number.

26570840949378 is an abundant number, since it is smaller than the sum of its proper divisors (36233769713598).

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

26570840949378 is a wasteful number, since it uses less digits than its factorization.

26570840949378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719639 (or 1719636 counting only the distinct ones).

The product of its (nonzero) digits is 731566080, while the sum is 72.

The spelling of 26570840949378 in words is "twenty-six trillion, five hundred seventy billion, eight hundred forty million, nine hundred forty-nine thousand, three hundred seventy-eight".