27700014640 has 40 divisors (see below), whose sum is σ = 64445437728. Its totient is φ = 11072624640.

The previous prime is 27700014619. The next prime is 27700014647. The reversal of 27700014640 is 4641000772.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×27700014640² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27700014647) 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, 6304 + ... + 235456.

Almost surely, 2^27700014640 is an apocalyptic number.

27700014640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27700014640 is an abundant number, since it is smaller than the sum of its proper divisors (36745423088).

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

27700014640 is a wasteful number, since it uses less digits than its factorization.

27700014640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230677 (or 230671 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The spelling of 27700014640 in words is "twenty-seven billion, seven hundred million, fourteen thousand, six hundred forty".