87328401057 has 24 divisors (see below), whose sum is σ = 128337104480. Its totient is φ = 57209613120.

The previous prime is 87328401007. The next prime is 87328401071. The reversal of 87328401057 is 75010482378.

It is not a de Polignac number, because 87328401057 - 2¹¹ = 87328399009 is a prime.

It is a super-3 number, since 3×87328401057³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87328401007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69582 + ... + 423672.

Almost surely, 2^87328401057 is an apocalyptic number.

It is an amenable number.

87328401057 is a deficient number, since it is larger than the sum of its proper divisors (41008703423).

87328401057 is a wasteful number, since it uses less digits than its factorization.

87328401057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354573 (or 354570 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The spelling of 87328401057 in words is "eighty-seven billion, three hundred twenty-eight million, four hundred one thousand, fifty-seven".