87472397109 has 8 divisors (see below), whose sum is σ = 116964047200. Its totient is φ = 58147839216.

The previous prime is 87472397101. The next prime is 87472397171. The reversal of 87472397109 is 90179327478.

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

It is not a de Polignac number, because 87472397109 - 2³ = 87472397101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87472397101) 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, 41771827 + ... + 41773920.

It is an arithmetic number, because the mean of its divisors is an integer number (14620505900).

Almost surely, 2^87472397109 is an apocalyptic number.

It is an amenable number.

87472397109 is a deficient number, since it is larger than the sum of its proper divisors (29491650091).

87472397109 is a wasteful number, since it uses less digits than its factorization.

87472397109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83546099.

The product of its (nonzero) digits is 5334336, while the sum is 57.

The spelling of 87472397109 in words is "eighty-seven billion, four hundred seventy-two million, three hundred ninety-seven thousand, one hundred nine".