27964776853240 has 32 divisors (see below), whose sum is σ = 66621968387280. Its totient is φ = 10527915991552.

The previous prime is 27964776853217. The next prime is 27964776853249. The reversal of 27964776853240 is 4235867746972.

It is a self number, because there is not a number n which added to its sum of digits gives 27964776853240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27964776853249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20562335242 + ... + 20562336601.

Almost surely, 2^{27964776853240} is an apocalyptic number.

27964776853240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27964776853240 is an abundant number, since it is smaller than the sum of its proper divisors (38657191534040).

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

27964776853240 is a wasteful number, since it uses less digits than its factorization.

27964776853240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41124671871 (or 41124671867 counting only the distinct ones).

The product of its (nonzero) digits is 853493760, while the sum is 70.

The spelling of 27964776853240 in words is "twenty-seven trillion, nine hundred sixty-four billion, seven hundred seventy-six million, eight hundred fifty-three thousand, two hundred forty".