67298069520 has 240 divisors, whose sum is σ = 248999759424. Its totient is φ = 16152960000.

The previous prime is 67298069513. The next prime is 67298069537. The reversal of 67298069520 is 2596089276.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×67298069520² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 757855 + ... + 841985.

Almost surely, 2^67298069520 is an apocalyptic number.

67298069520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67298069520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124499879712).

67298069520 is an abundant number, since it is smaller than the sum of its proper divisors (181701689904).

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

67298069520 is a wasteful number, since it uses less digits than its factorization.

67298069520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84262 (or 84253 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 67298069520 in words is "sixty-seven billion, two hundred ninety-eight million, sixty-nine thousand, five hundred twenty".