99788545395 has 384 divisors, whose sum is σ = 242266152960. Its totient is φ = 36682813440.

The previous prime is 99788545331. The next prime is 99788545399. The reversal of 99788545395 is 59354588799.

99788545395 is a `hidden beast` number, since 9 + 9 + 7 + 8 + 85 + 4 + 539 + 5 = 666.

It is not a de Polignac number, because 99788545395 - 2⁶ = 99788545331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99788545399) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 182428512 + ... + 182429058.

It is an arithmetic number, because the mean of its divisors is an integer number (630901440).

Almost surely, 2^99788545395 is an apocalyptic number.

99788545395 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

99788545395 is the 157947-th decagonal number.

99788545395 is an abundant number, since it is smaller than the sum of its proper divisors (142477607565).

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

99788545395 is a wasteful number, since it uses less digits than its factorization.

99788545395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775 (or 772 counting only the distinct ones).

The product of its digits is 489888000, while the sum is 72.

The spelling of 99788545395 in words is "ninety-nine billion, seven hundred eighty-eight million, five hundred forty-five thousand, three hundred ninety-five".