27640437801 has 8 divisors (see below), whose sum is σ = 37218807744. Its totient is φ = 18244513200.

The previous prime is 27640437767. The next prime is 27640437829. The reversal of 27640437801 is 10873404672.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27640437801 - 2¹⁰ = 27640436777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27640437871) 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, 45610981 + ... + 45611586.

It is an arithmetic number, because the mean of its divisors is an integer number (4652350968).

Almost surely, 2^27640437801 is an apocalyptic number.

It is an amenable number.

27640437801 is a deficient number, since it is larger than the sum of its proper divisors (9578369943).

27640437801 is a wasteful number, since it uses less digits than its factorization.

27640437801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91222671.

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 27640437801 in words is "twenty-seven billion, six hundred forty million, four hundred thirty-seven thousand, eight hundred one".