88378150018621 has 2 divisors, whose sum is σ = 88378150018622. Its totient is φ = 88378150018620.

The previous prime is 88378150018531. The next prime is 88378150018721. The reversal of 88378150018621 is 12681005187388.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81081722602521 + 7296427416100 = 9004539^2 + 2701190^2 .

It is a cyclic number.

It is not a de Polignac number, because 88378150018621 - 2⁷ = 88378150018493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88378150018321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44189075009310 + 44189075009311.

It is an arithmetic number, because the mean of its divisors is an integer number (44189075009311).

Almost surely, 2^{88378150018621} is an apocalyptic number.

It is an amenable number.

88378150018621 is a deficient number, since it is larger than the sum of its proper divisors (1).

88378150018621 is an equidigital number, since it uses as much as digits as its factorization.

88378150018621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5160960, while the sum is 58.

The spelling of 88378150018621 in words is "eighty-eight trillion, three hundred seventy-eight billion, one hundred fifty million, eighteen thousand, six hundred twenty-one".