67706075525070 has 128 divisors (see below), whose sum is σ = 168774368515200. Its totient is φ = 17368270774272.

The previous prime is 67706075525069. The next prime is 67706075525071. The reversal of 67706075525070 is 7052557060776.

It is an interprime number because it is at equal distance from previous prime (67706075525069) and next prime (67706075525071).

It is a super-2 number, since 2×67706075525070² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 67706075525070.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67706075525071) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2440988242 + ... + 2441015978.

It is an arithmetic number, because the mean of its divisors is an integer number (1318549754025).

Almost surely, 2^{67706075525070} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67706075525070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84387184257600).

67706075525070 is an abundant number, since it is smaller than the sum of its proper divisors (101068292990130).

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

67706075525070 is a wasteful number, since it uses less digits than its factorization.

67706075525070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52582.

The product of its (nonzero) digits is 21609000, while the sum is 57.

The spelling of 67706075525070 in words is "sixty-seven trillion, seven hundred six billion, seventy-five million, five hundred twenty-five thousand, seventy".