27358900394 has 160 divisors (see below), whose sum is σ = 55177459200. Its totient is φ = 10099676160.

The previous prime is 27358900391. The next prime is 27358900397. The reversal of 27358900394 is 49300985372.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (27358900391) and next prime (27358900397).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27358900391) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 48082142 + ... + 48082710.

It is an arithmetic number, because the mean of its divisors is an integer number (344859120).

Almost surely, 2^27358900394 is an apocalyptic number.

27358900394 is an abundant number, since it is smaller than the sum of its proper divisors (27818558806).

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

27358900394 is a wasteful number, since it uses less digits than its factorization.

27358900394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 27358900394 in words is "twenty-seven billion, three hundred fifty-eight million, nine hundred thousand, three hundred ninety-four".