87451215545 has 8 divisors (see below), whose sum is σ = 110464693440. Its totient is φ = 66278815920.

The previous prime is 87451215529. The next prime is 87451215571. The reversal of 87451215545 is 54551215478.

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

It is not a de Polignac number, because 87451215545 - 2⁴ = 87451215529 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 87451215545.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460269461 + ... + 460269650.

It is an arithmetic number, because the mean of its divisors is an integer number (13808086680).

Almost surely, 2^87451215545 is an apocalyptic number.

It is an amenable number.

87451215545 is a deficient number, since it is larger than the sum of its proper divisors (23013477895).

87451215545 is a wasteful number, since it uses less digits than its factorization.

87451215545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920539135.

The product of its digits is 1120000, while the sum is 47.

The spelling of 87451215545 in words is "eighty-seven billion, four hundred fifty-one million, two hundred fifteen thousand, five hundred forty-five".