99683796478 has 96 divisors (see below), whose sum is σ = 189939769344. Its totient is φ = 38263104000.

The previous prime is 99683796449. The next prime is 99683796481. The reversal of 99683796478 is 87469738699.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27451723 + ... + 27455353.

It is an arithmetic number, because the mean of its divisors is an integer number (1978539264).

Almost surely, 2^99683796478 is an apocalyptic number.

99683796478 is a deficient number, since it is larger than the sum of its proper divisors (90255972866).

99683796478 is a wasteful number, since it uses less digits than its factorization.

99683796478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3810 (or 3749 counting only the distinct ones).

The product of its digits is 987614208, while the sum is 76.

The spelling of 99683796478 in words is "ninety-nine billion, six hundred eighty-three million, seven hundred ninety-six thousand, four hundred seventy-eight".