99763821492 has 12 divisors (see below), whose sum is σ = 232782250176. Its totient is φ = 33254607160.

The previous prime is 99763821481. The next prime is 99763821497. The reversal of 99763821492 is 29412836799.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×99763821492² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99763821497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4156825884 + ... + 4156825907.

It is an arithmetic number, because the mean of its divisors is an integer number (19398520848).

Almost surely, 2^99763821492 is an apocalyptic number.

It is an amenable number.

99763821492 is an abundant number, since it is smaller than the sum of its proper divisors (133018428684).

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

99763821492 is a wasteful number, since it uses less digits than its factorization.

99763821492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8313651798 (or 8313651796 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 60.

The spelling of 99763821492 in words is "ninety-nine billion, seven hundred sixty-three million, eight hundred twenty-one thousand, four hundred ninety-two".