27931451690200 has 48 divisors (see below), whose sum is σ = 64940984694000. Its totient is φ = 11172518824320.

The previous prime is 27931451690183. The next prime is 27931451690249. The reversal of 27931451690200 is 209615413972.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57291061 + ... + 57776539.

It is an arithmetic number, because the mean of its divisors is an integer number (1352937181125).

Almost surely, 2^{27931451690200} is an apocalyptic number.

27931451690200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27931451690200 is an abundant number, since it is smaller than the sum of its proper divisors (37009533003800).

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

27931451690200 is a wasteful number, since it uses less digits than its factorization.

27931451690200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773164 (or 773155 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 49.

The spelling of 27931451690200 in words is "twenty-seven trillion, nine hundred thirty-one billion, four hundred fifty-one million, six hundred ninety thousand, two hundred".