97788491826 has 8 divisors (see below), whose sum is σ = 195576983664. Its totient is φ = 32596163940.

The previous prime is 97788491797. The next prime is 97788491897. The reversal of 97788491826 is 62819488779.

It is a sphenic number, since it is the product of 3 distinct primes.

97788491826 is an admirable number.

It is a super-3 number, since 3×97788491826³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8149040980 + ... + 8149040991.

It is an arithmetic number, because the mean of its divisors is an integer number (24447122958).

Almost surely, 2^97788491826 is an apocalyptic number.

97788491826 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

97788491826 is a wasteful number, since it uses less digits than its factorization.

97788491826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16298081976.

The product of its digits is 97542144, while the sum is 69.

The spelling of 97788491826 in words is "ninety-seven billion, seven hundred eighty-eight million, four hundred ninety-one thousand, eight hundred twenty-six".