27384764870 has 16 divisors (see below), whose sum is σ = 49300313040. Its totient is φ = 10952186784.

The previous prime is 27384764851. The next prime is 27384764879. The reversal of 27384764870 is 7846748372.

It is a happy number.

It is a super-2 number, since 2×27384764870² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27384764879) 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, 146972 + ... + 276351.

It is an arithmetic number, because the mean of its divisors is an integer number (3081269565).

Almost surely, 2^27384764870 is an apocalyptic number.

27384764870 is a deficient number, since it is larger than the sum of its proper divisors (21915548170).

27384764870 is a wasteful number, since it uses less digits than its factorization.

27384764870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429799.

The product of its (nonzero) digits is 12644352, while the sum is 56.

The spelling of 27384764870 in words is "twenty-seven billion, three hundred eighty-four million, seven hundred sixty-four thousand, eight hundred seventy".