26770650660 has 120 divisors (see below), whose sum is σ = 90440633976. Its totient is φ = 6589693440.

The previous prime is 26770650637. The next prime is 26770650661. The reversal of 26770650660 is 6605607762.

It can be written as a sum of positive squares in 4 ways, for example, as 689692644 + 26080958016 = 26262^2 + 161496^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (26770650661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 614521 + ... + 656640.

Almost surely, 2^26770650660 is an apocalyptic number.

26770650660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26770650660 is an abundant number, since it is smaller than the sum of its proper divisors (63669983316).

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

26770650660 is a wasteful number, since it uses less digits than its factorization.

26770650660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271195 (or 1271184 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The spelling of 26770650660 in words is "twenty-six billion, seven hundred seventy million, six hundred fifty thousand, six hundred sixty".