27628779000 has 64 divisors (see below), whose sum is σ = 86201799840. Its totient is φ = 7367673600.

The previous prime is 27628778977. The next prime is 27628779023. The reversal of 27628779000 is 97782672.

It is an interprime number because it is at equal distance from previous prime (27628778977) and next prime (27628779023).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4601797 + ... + 4607796.

Almost surely, 2^27628779000 is an apocalyptic number.

27628779000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27628779000 is an abundant number, since it is smaller than the sum of its proper divisors (58573020840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27628779000 is a wasteful number, since it uses less digits than its factorization.

27628779000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9209617 (or 9209603 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 48.

The spelling of 27628779000 in words is "twenty-seven billion, six hundred twenty-eight million, seven hundred seventy-nine thousand".