88303780921 has 2 divisors, whose sum is σ = 88303780922. Its totient is φ = 88303780920.

The previous prime is 88303780919. The next prime is 88303780963. The reversal of 88303780921 is 12908730388.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79366158400 + 8937622521 = 281720^2 + 94539^2 .

It is a cyclic number.

It is not a de Polignac number, because 88303780921 - 2¹ = 88303780919 is a prime.

Together with 88303780919, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (88303780421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44151890460 + 44151890461.

It is an arithmetic number, because the mean of its divisors is an integer number (44151890461).

Almost surely, 2^88303780921 is an apocalyptic number.

It is an amenable number.

88303780921 is a deficient number, since it is larger than the sum of its proper divisors (1).

88303780921 is an equidigital number, since it uses as much as digits as its factorization.

88303780921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 49.

The spelling of 88303780921 in words is "eighty-eight billion, three hundred three million, seven hundred eighty thousand, nine hundred twenty-one".