28743117371 has 2 divisors, whose sum is σ = 28743117372. Its totient is φ = 28743117370.

The previous prime is 28743117341. The next prime is 28743117433. The reversal of 28743117371 is 17371134782.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28743117371 - 2²² = 28738923067 is a prime.

It is not a weakly prime, because it can be changed into another prime (28743117341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14371558685 + 14371558686.

It is an arithmetic number, because the mean of its divisors is an integer number (14371558686).

Almost surely, 2^28743117371 is an apocalyptic number.

28743117371 is a deficient number, since it is larger than the sum of its proper divisors (1).

28743117371 is an equidigital number, since it uses as much as digits as its factorization.

28743117371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 197568, while the sum is 44.

The spelling of 28743117371 in words is "twenty-eight billion, seven hundred forty-three million, one hundred seventeen thousand, three hundred seventy-one".