99280759851 has 24 divisors (see below), whose sum is σ = 176499130080. Its totient is φ = 52367872896.

The previous prime is 99280759847. The next prime is 99280759937. The reversal of 99280759851 is 15895708299.

It is not a de Polignac number, because 99280759851 - 2² = 99280759847 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (99280759811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60610146 + ... + 60611783.

It is an arithmetic number, because the mean of its divisors is an integer number (7354130420).

Almost surely, 2^99280759851 is an apocalyptic number.

99280759851 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

99280759851 is a deficient number, since it is larger than the sum of its proper divisors (77218370229).

99280759851 is a wasteful number, since it uses less digits than its factorization.

99280759851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121221955 (or 121221952 counting only the distinct ones).

The product of its (nonzero) digits is 16329600, while the sum is 63.

The spelling of 99280759851 in words is "ninety-nine billion, two hundred eighty million, seven hundred fifty-nine thousand, eight hundred fifty-one".