109028951557 has 2 divisors, whose sum is σ = 109028951558. Its totient is φ = 109028951556.

The previous prime is 109028951527. The next prime is 109028951567. The reversal of 109028951557 is 755159820901.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95604021601 + 13424929956 = 309199^2 + 115866^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109028951557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109028951527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54514475778 + 54514475779.

It is an arithmetic number, because the mean of its divisors is an integer number (54514475779).

Almost surely, 2^109028951557 is an apocalyptic number.

It is an amenable number.

109028951557 is a deficient number, since it is larger than the sum of its proper divisors (1).

109028951557 is an equidigital number, since it uses as much as digits as its factorization.

109028951557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134000, while the sum is 52.

The spelling of 109028951557 in words is "one hundred nine billion, twenty-eight million, nine hundred fifty-one thousand, five hundred fifty-seven".