27790926501887 has 8 divisors (see below), whose sum is σ = 27812073360480. Its totient is φ = 27769785880320.

The previous prime is 27790926501817. The next prime is 27790926501913. The reversal of 27790926501887 is 78810562909772.

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

It is a cyclic number.

It is not a de Polignac number, because 27790926501887 - 2¹⁸ = 27790926239743 is a prime.

It is a super-2 number, since 2×27790926501887² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27790926501887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27790926501817) 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, 7375187 + ... + 10486907.

It is an arithmetic number, because the mean of its divisors is an integer number (3476509170060).

Almost surely, 2^{27790926501887} is an apocalyptic number.

27790926501887 is a deficient number, since it is larger than the sum of its proper divisors (21146858593).

27790926501887 is a wasteful number, since it uses less digits than its factorization.

27790926501887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3118513.

The product of its (nonzero) digits is 213373440, while the sum is 71.

The spelling of 27790926501887 in words is "twenty-seven trillion, seven hundred ninety billion, nine hundred twenty-six million, five hundred one thousand, eight hundred eighty-seven".