87451215541 has 8 divisors (see below), whose sum is σ = 88926850944. Its totient is φ = 85980591840.

The previous prime is 87451215529. The next prime is 87451215571. The reversal of 87451215541 is 14551215478.

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

It is a cyclic number.

It is not a de Polignac number, because 87451215541 - 2⁹ = 87451215029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87451215521) 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, 1217725 + ... + 1287538.

It is an arithmetic number, because the mean of its divisors is an integer number (11115856368).

Almost surely, 2^87451215541 is an apocalyptic number.

It is an amenable number.

87451215541 is a deficient number, since it is larger than the sum of its proper divisors (1475635403).

87451215541 is a wasteful number, since it uses less digits than its factorization.

87451215541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2505851.

The product of its digits is 224000, while the sum is 43.

The spelling of 87451215541 in words is "eighty-seven billion, four hundred fifty-one million, two hundred fifteen thousand, five hundred forty-one".