99747460981 has 12 divisors (see below), whose sum is σ = 116039542080. Its totient is φ = 85492827000.

The previous prime is 99747460979. The next prime is 99747460991. The reversal of 99747460981 is 18906474799.

It is not a de Polignac number, because 99747460981 - 2¹ = 99747460979 is a prime.

It is a super-2 number, since 2×99747460981² (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 (99747460991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 966106 + ... + 1064356.

It is an arithmetic number, because the mean of its divisors is an integer number (9669961840).

Almost surely, 2^99747460981 is an apocalyptic number.

It is an amenable number.

99747460981 is a deficient number, since it is larger than the sum of its proper divisors (16292081099).

99747460981 is a wasteful number, since it uses less digits than its factorization.

99747460981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118984 (or 118977 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 64.

The spelling of 99747460981 in words is "ninety-nine billion, seven hundred forty-seven million, four hundred sixty thousand, nine hundred eighty-one".