27872640796 has 72 divisors (see below), whose sum is σ = 66660508656. Its totient is φ = 10024116480.

The previous prime is 27872640793. The next prime is 27872640797. The reversal of 27872640796 is 69704627872.

It is a self number, because there is not a number n which added to its sum of digits gives 27872640796.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27872640793) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 469201 + ... + 525256.

It is an arithmetic number, because the mean of its divisors is an integer number (925840398).

Almost surely, 2^27872640796 is an apocalyptic number.

27872640796 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

27872640796 is an abundant number, since it is smaller than the sum of its proper divisors (38787867860).

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

27872640796 is a wasteful number, since it uses less digits than its factorization.

27872640796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994499 (or 994490 counting only the distinct ones).

The product of its (nonzero) digits is 14224896, while the sum is 58.

The spelling of 27872640796 in words is "twenty-seven billion, eight hundred seventy-two million, six hundred forty thousand, seven hundred ninety-six".