88471813789 has 2 divisors, whose sum is σ = 88471813790. Its totient is φ = 88471813788.

The previous prime is 88471813733. The next prime is 88471813813. The reversal of 88471813789 is 98731817488.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86924728900 + 1547084889 = 294830^2 + 39333^2 .

It is a cyclic number.

It is not a de Polignac number, because 88471813789 - 2²⁹ = 87934942877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 88471813789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88471813489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44235906894 + 44235906895.

It is an arithmetic number, because the mean of its divisors is an integer number (44235906895).

Almost surely, 2^88471813789 is an apocalyptic number.

It is an amenable number.

88471813789 is a deficient number, since it is larger than the sum of its proper divisors (1).

88471813789 is an equidigital number, since it uses as much as digits as its factorization.

88471813789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21676032, while the sum is 64.

The spelling of 88471813789 in words is "eighty-eight billion, four hundred seventy-one million, eight hundred thirteen thousand, seven hundred eighty-nine".