87020350326591 has 32 divisors (see below), whose sum is σ = 126606925843200. Its totient is φ = 52726328705280.

The previous prime is 87020350326563. The next prime is 87020350326647. The reversal of 87020350326591 is 19562305302078.

It is not a de Polignac number, because 87020350326591 - 2⁷ = 87020350326463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87020350326521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2966015200 + ... + 2966044538.

It is an arithmetic number, because the mean of its divisors is an integer number (3956466432600).

Almost surely, 2^{87020350326591} is an apocalyptic number.

87020350326591 is a deficient number, since it is larger than the sum of its proper divisors (39586575516609).

87020350326591 is a wasteful number, since it uses less digits than its factorization.

87020350326591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48919.

The product of its (nonzero) digits is 2721600, while the sum is 51.

The spelling of 87020350326591 in words is "eighty-seven trillion, twenty billion, three hundred fifty million, three hundred twenty-six thousand, five hundred ninety-one".