99262747921 has 8 divisors (see below), whose sum is σ = 99445820544. Its totient is φ = 99079764480.

The previous prime is 99262747891. The next prime is 99262747939. The reversal of 99262747921 is 12974726299.

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

It is a cyclic number.

It is not a de Polignac number, because 99262747921 - 2¹³ = 99262739729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99262747951) 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, 2456140 + ... + 2496226.

It is an arithmetic number, because the mean of its divisors is an integer number (12430727568).

Almost surely, 2^99262747921 is an apocalyptic number.

It is an amenable number.

99262747921 is a deficient number, since it is larger than the sum of its proper divisors (183072623).

99262747921 is a wasteful number, since it uses less digits than its factorization.

99262747921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44591.

The product of its digits is 6858432, while the sum is 58.

The spelling of 99262747921 in words is "ninety-nine billion, two hundred sixty-two million, seven hundred forty-seven thousand, nine hundred twenty-one".