27646951442 has 12 divisors (see below), whose sum is σ = 45583197198. Its totient is φ = 12566796000.

The previous prime is 27646951427. The next prime is 27646951457. The reversal of 27646951442 is 24415964672.

It is an interprime number because it is at equal distance from previous prime (27646951427) and next prime (27646951457).

It can be written as a sum of positive squares in only one way, i.e., 26967879961 + 679071481 = 164219^2 + 26059^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57121559 + ... + 57122042.

Almost surely, 2^27646951442 is an apocalyptic number.

27646951442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

27646951442 is a deficient number, since it is larger than the sum of its proper divisors (17936245756).

27646951442 is a wasteful number, since it uses less digits than its factorization.

27646951442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114243625 (or 114243614 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 50.

The spelling of 27646951442 in words is "twenty-seven billion, six hundred forty-six million, nine hundred fifty-one thousand, four hundred forty-two".