109639233751 has 2 divisors, whose sum is σ = 109639233752. Its totient is φ = 109639233750.

The previous prime is 109639233749. The next prime is 109639233797. The reversal of 109639233751 is 157332936901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 109639233751 - 2¹ = 109639233749 is a prime.

Together with 109639233749, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 109639233695 and 109639233704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109639233701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54819616875 + 54819616876.

It is an arithmetic number, because the mean of its divisors is an integer number (54819616876).

Almost surely, 2^109639233751 is an apocalyptic number.

109639233751 is a deficient number, since it is larger than the sum of its proper divisors (1).

109639233751 is an equidigital number, since it uses as much as digits as its factorization.

109639233751 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 918540, while the sum is 49.

The spelling of 109639233751 in words is "one hundred nine billion, six hundred thirty-nine million, two hundred thirty-three thousand, seven hundred fifty-one".