27777793142 has 16 divisors (see below), whose sum is σ = 46683073872. Its totient is φ = 12285018720.

The previous prime is 27777793139. The next prime is 27777793157. The reversal of 27777793142 is 24139777772.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17061713 + ... + 17063340.

It is an arithmetic number, because the mean of its divisors is an integer number (2917692117).

Almost surely, 2^27777793142 is an apocalyptic number.

27777793142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

27777793142 is a deficient number, since it is larger than the sum of its proper divisors (18905280730).

27777793142 is a wasteful number, since it uses less digits than its factorization.

27777793142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34125103.

The product of its digits is 7260624, while the sum is 56.

The spelling of 27777793142 in words is "twenty-seven billion, seven hundred seventy-seven million, seven hundred ninety-three thousand, one hundred forty-two".