27958957240 has 32 divisors (see below), whose sum is σ = 62928900000. Its totient is φ = 11179805824.

The previous prime is 27958957219. The next prime is 27958957249. The reversal of 27958957240 is 4275985972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27958957249) 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, 3426 + ... + 236494.

It is an arithmetic number, because the mean of its divisors is an integer number (1966528125).

Almost surely, 2^27958957240 is an apocalyptic number.

27958957240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27958957240 is an abundant number, since it is smaller than the sum of its proper divisors (34969942760).

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

27958957240 is a wasteful number, since it uses less digits than its factorization.

27958957240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236079 (or 236075 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 58.

The spelling of 27958957240 in words is "twenty-seven billion, nine hundred fifty-eight million, nine hundred fifty-seven thousand, two hundred forty".