87718421451 has 8 divisors (see below), whose sum is σ = 116997273664. Its totient is φ = 58459258440.

The previous prime is 87718421423. The next prime is 87718421459. The reversal of 87718421451 is 15412481778.

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

It is not a de Polignac number, because 87718421451 - 2⁵ = 87718421419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87718421451.

It is not an unprimeable number, because it can be changed into a prime (87718421459) 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, 4911901 + ... + 4929726.

It is an arithmetic number, because the mean of its divisors is an integer number (14624659208).

Almost surely, 2^87718421451 is an apocalyptic number.

87718421451 is a deficient number, since it is larger than the sum of its proper divisors (29278852213).

87718421451 is a wasteful number, since it uses less digits than its factorization.

87718421451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9844601.

The product of its digits is 501760, while the sum is 48.

The spelling of 87718421451 in words is "eighty-seven billion, seven hundred eighteen million, four hundred twenty-one thousand, four hundred fifty-one".