99735083978 has 8 divisors (see below), whose sum is σ = 149979459972. Its totient is φ = 49741930656.

The previous prime is 99735083957. The next prime is 99735084013. The reversal of 99735083978 is 87938053799.

It can be written as a sum of positive squares in 2 ways, for example, as 99636816409 + 98267569 = 315653^2 + 9913^2 .

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

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, 62804675 + ... + 62806262.

Almost surely, 2^99735083978 is an apocalyptic number.

99735083978 is a deficient number, since it is larger than the sum of its proper divisors (50244375994).

99735083978 is a wasteful number, since it uses less digits than its factorization.

99735083978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125611336.

The product of its (nonzero) digits is 102876480, while the sum is 68.

The spelling of 99735083978 in words is "ninety-nine billion, seven hundred thirty-five million, eighty-three thousand, nine hundred seventy-eight".