27929063587 has 4 divisors (see below), whose sum is σ = 27929404720. Its totient is φ = 27928722456.

The previous prime is 27929063573. The next prime is 27929063597. The reversal of 27929063587 is 78536092972.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a 3-Lehmer number, since φ(27929063587) divides (27929063587-1)³.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27929063587 is a prime.

It is a deceptive number, since it divides R_27929063586.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27929063527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34114 + ... + 238792.

It is an arithmetic number, because the mean of its divisors is an integer number (6982351180).

Almost surely, 2^27929063587 is an apocalyptic number.

27929063587 is the 136453-rd pentagonal number.

27929063587 is a deficient number, since it is larger than the sum of its proper divisors (341133).

27929063587 is a wasteful number, since it uses less digits than its factorization.

27929063587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341132.

The product of its (nonzero) digits is 11430720, while the sum is 58.

The spelling of 27929063587 in words is "twenty-seven billion, nine hundred twenty-nine million, sixty-three thousand, five hundred eighty-seven".