99677794719 has 8 divisors (see below), whose sum is σ = 133719087232. Its totient is φ = 66044182680.

The previous prime is 99677794709. The next prime is 99677794771. The reversal of 99677794719 is 91749777699.

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

It is not a de Polignac number, because 99677794719 - 2⁹ = 99677794207 is a prime.

It is a super-2 number, since 2×99677794719² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99677794709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101919547 + ... + 101920524.

It is an arithmetic number, because the mean of its divisors is an integer number (16714885904).

Almost surely, 2^99677794719 is an apocalyptic number.

99677794719 is a deficient number, since it is larger than the sum of its proper divisors (34041292513).

99677794719 is a wasteful number, since it uses less digits than its factorization.

99677794719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203840237.

The product of its digits is 378071064, while the sum is 75.

The spelling of 99677794719 in words is "ninety-nine billion, six hundred seventy-seven million, seven hundred ninety-four thousand, seven hundred nineteen".