87451215542 has 8 divisors (see below), whose sum is σ = 134722142976. Its totient is φ = 42543834552.

The previous prime is 87451215529. The next prime is 87451215571. The reversal of 87451215542 is 24551215478.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 87451215493 and 87451215502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590886518 + ... + 590886665.

It is an arithmetic number, because the mean of its divisors is an integer number (16840267872).

Almost surely, 2^87451215542 is an apocalyptic number.

87451215542 is a deficient number, since it is larger than the sum of its proper divisors (47270927434).

87451215542 is a wasteful number, since it uses less digits than its factorization.

87451215542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181773222.

The product of its digits is 448000, while the sum is 44.

The spelling of 87451215542 in words is "eighty-seven billion, four hundred fifty-one million, two hundred fifteen thousand, five hundred forty-two".