99272280549 has 32 divisors (see below), whose sum is σ = 150103134720. Its totient is φ = 57853752768.

The previous prime is 99272280509. The next prime is 99272280551. The reversal of 99272280549 is 94508227299.

It is a happy number.

It is not a de Polignac number, because 99272280549 - 2¹³ = 99272272357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99272280509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2083102 + ... + 2130224.

It is an arithmetic number, because the mean of its divisors is an integer number (4690722960).

Almost surely, 2^99272280549 is an apocalyptic number.

It is an amenable number.

99272280549 is a deficient number, since it is larger than the sum of its proper divisors (50830854171).

99272280549 is a wasteful number, since it uses less digits than its factorization.

99272280549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50001.

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 99272280549 in words is "ninety-nine billion, two hundred seventy-two million, two hundred eighty thousand, five hundred forty-nine".