87642794448 has 140 divisors (see below), whose sum is σ = 277740848448. Its totient is φ = 26558383680.

The previous prime is 87642794441. The next prime is 87642794461. The reversal of 87642794448 is 84449724678.

87642794448 is a `hidden beast` number, since 87 + 6 + 4 + 27 + 94 + 448 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87642794441) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 213240 + ... + 469847.

Almost surely, 2^87642794448 is an apocalyptic number.

87642794448 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

87642794448 is an abundant number, since it is smaller than the sum of its proper divisors (190098054000).

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

87642794448 is a wasteful number, since it uses less digits than its factorization.

87642794448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683124 (or 683103 counting only the distinct ones).

The product of its digits is 86704128, while the sum is 63.

The spelling of 87642794448 in words is "eighty-seven billion, six hundred forty-two million, seven hundred ninety-four thousand, four hundred forty-eight".