87481746440626 has 4 divisors (see below), whose sum is σ = 131222619660942. Its totient is φ = 43740873220312.

The previous prime is 87481746440609. The next prime is 87481746440681. The reversal of 87481746440626 is 62604464718478.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 79509340073601 + 7972406367025 = 8916801^2 + 2823545^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21870436610155 + ... + 21870436610158.

Almost surely, 2^{87481746440626} is an apocalyptic number.

87481746440626 is a deficient number, since it is larger than the sum of its proper divisors (43740873220316).

87481746440626 is a wasteful number, since it uses less digits than its factorization.

87481746440626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43740873220315.

The product of its (nonzero) digits is 346816512, while the sum is 67.

The spelling of 87481746440626 in words is "eighty-seven trillion, four hundred eighty-one billion, seven hundred forty-six million, four hundred forty thousand, six hundred twenty-six".