27458740820 has 24 divisors (see below), whose sum is σ = 65900978304. Its totient is φ = 9414425376.

The previous prime is 27458740819. The next prime is 27458740871. The reversal of 27458740820 is 2804785472.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98066792 + ... + 98067071.

It is an arithmetic number, because the mean of its divisors is an integer number (2745874096).

Almost surely, 2^27458740820 is an apocalyptic number.

27458740820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27458740820 is an abundant number, since it is smaller than the sum of its proper divisors (38442237484).

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

27458740820 is a wasteful number, since it uses less digits than its factorization.

27458740820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196133879 (or 196133877 counting only the distinct ones).

The product of its (nonzero) digits is 1003520, while the sum is 47.

The spelling of 27458740820 in words is "twenty-seven billion, four hundred fifty-eight million, seven hundred forty thousand, eight hundred twenty".