87461000629 has 2 divisors, whose sum is σ = 87461000630. Its totient is φ = 87461000628.

The previous prime is 87461000581. The next prime is 87461000651. The reversal of 87461000629 is 92600016478.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82957248529 + 4503752100 = 288023^2 + 67110^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87461000629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87461000129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43730500314 + 43730500315.

It is an arithmetic number, because the mean of its divisors is an integer number (43730500315).

Almost surely, 2^87461000629 is an apocalyptic number.

It is an amenable number.

87461000629 is a deficient number, since it is larger than the sum of its proper divisors (1).

87461000629 is an equidigital number, since it uses as much as digits as its factorization.

87461000629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 87461000629 in words is "eighty-seven billion, four hundred sixty-one million, six hundred twenty-nine", and thus it is an aban number.