27934064620 has 48 divisors (see below), whose sum is σ = 73136464128. Its totient is φ = 8706720960.

The previous prime is 27934064563. The next prime is 27934064621. The reversal of 27934064620 is 2646043972.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (27934064621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9067962 + ... + 9071041.

It is an arithmetic number, because the mean of its divisors is an integer number (1523676336).

Almost surely, 2^27934064620 is an apocalyptic number.

27934064620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27934064620 is an abundant number, since it is smaller than the sum of its proper divisors (45202399508).

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

27934064620 is a wasteful number, since it uses less digits than its factorization.

27934064620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18139030 (or 18139028 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 27934064620 in words is "twenty-seven billion, nine hundred thirty-four million, sixty-four thousand, six hundred twenty".