28874737073 has 16 divisors (see below), whose sum is σ = 37083277056. Its totient is φ = 21852642240.

The previous prime is 28874737049. The next prime is 28874737093. The reversal of 28874737073 is 37073747882.

It is a happy number.

It is not a de Polignac number, because 28874737073 - 2⁶ = 28874737009 is a prime.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (28874737033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6895838 + ... + 6900023.

It is an arithmetic number, because the mean of its divisors is an integer number (2317704816).

Almost surely, 2^28874737073 is an apocalyptic number.

28874737073 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

28874737073 is a deficient number, since it is larger than the sum of its proper divisors (8208539983).

28874737073 is a wasteful number, since it uses less digits than its factorization.

28874737073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13795904.

The product of its (nonzero) digits is 11063808, while the sum is 56.

The spelling of 28874737073 in words is "twenty-eight billion, eight hundred seventy-four million, seven hundred thirty-seven thousand, seventy-three".