27294921940 has 96 divisors (see below), whose sum is σ = 68773307904. Its totient is φ = 8966952960.

The previous prime is 27294921917. The next prime is 27294921977. The reversal of 27294921940 is 4912949272.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32892 + ... + 235948.

It is an arithmetic number, because the mean of its divisors is an integer number (716388624).

Almost surely, 2^27294921940 is an apocalyptic number.

27294921940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27294921940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34386653952).

27294921940 is an abundant number, since it is smaller than the sum of its proper divisors (41478385964).

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

27294921940 is a wasteful number, since it uses less digits than its factorization.

27294921940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203137 (or 203135 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 27294921940 in words is "twenty-seven billion, two hundred ninety-four million, nine hundred twenty-one thousand, nine hundred forty".