68516480 has 32 divisors (see below), whose sum is σ = 163798740. Its totient is φ = 27406336.

The previous prime is 68516467. The next prime is 68516507. The reversal of 68516480 is 8461586.

68516480 = T₃₉₅ + T₃₉₆ + ... + T₇₇₈.

It can be written as a sum of positive squares in 2 ways, for example, as 68293696 + 222784 = 8264^2 + 472^2 .

It is a tau number, because it is divible by the number of its divisors (32).

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, 52889 + ... + 54168.

Almost surely, 2^68516480 is an apocalyptic number.

It is an amenable number.

68516480 is an abundant number, since it is smaller than the sum of its proper divisors (95282260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68516480 is a wasteful number, since it uses less digits than its factorization.

68516480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107076 (or 107064 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 68516480 is about 8277.4682119595. The cubic root of 68516480 is about 409.1962839361.

It can be divided in two parts, 6851 and 6480, that added together give a palindrome (13331).

The spelling of 68516480 in words is "sixty-eight million, five hundred sixteen thousand, four hundred eighty".