27773503642 has 8 divisors (see below), whose sum is σ = 42230944116. Its totient is φ = 13696522272.

The previous prime is 27773503613. The next prime is 27773503643. The reversal of 27773503642 is 24630537772.

It can be written as a sum of positive squares in 2 ways, for example, as 27769222881 + 4280761 = 166641^2 + 2069^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 27773503592 and 27773503601.

It is not an unprimeable number, because it can be changed into a prime (27773503643) 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, 95114593 + ... + 95114884.

Almost surely, 2^27773503642 is an apocalyptic number.

27773503642 is a deficient number, since it is larger than the sum of its proper divisors (14457440474).

27773503642 is a wasteful number, since it uses less digits than its factorization.

27773503642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190229552.

The product of its (nonzero) digits is 1481760, while the sum is 46.

The spelling of 27773503642 in words is "twenty-seven billion, seven hundred seventy-three million, five hundred three thousand, six hundred forty-two".