87640622463 has 8 divisors (see below), whose sum is σ = 117048598576. Its totient is φ = 58329864000.

The previous prime is 87640622417. The next prime is 87640622477. The reversal of 87640622463 is 36422604678.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87640622463 - 2⁸ = 87640622207 is a prime.

It is a super-3 number, since 3×87640622463³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87640622483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24302308 + ... + 24305913.

It is an arithmetic number, because the mean of its divisors is an integer number (14631074822).

Almost surely, 2^87640622463 is an apocalyptic number.

87640622463 is a deficient number, since it is larger than the sum of its proper divisors (29407976113).

87640622463 is a wasteful number, since it uses less digits than its factorization.

87640622463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48608825.

The product of its (nonzero) digits is 2322432, while the sum is 48.

The spelling of 87640622463 in words is "eighty-seven billion, six hundred forty million, six hundred twenty-two thousand, four hundred sixty-three".