67500078426 has 96 divisors (see below), whose sum is σ = 160679376000. Its totient is φ = 20309667840.

The previous prime is 67500078413. The next prime is 67500078439. The reversal of 67500078426 is 62487000576.

67500078426 is a `hidden beast` number, since 67 + 500 + 0 + 7 + 84 + 2 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (67500078413) and next prime (67500078439).

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, 22733470 + ... + 22736438.

It is an arithmetic number, because the mean of its divisors is an integer number (1673743500).

Almost surely, 2^67500078426 is an apocalyptic number.

67500078426 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 67500078426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80339688000).

67500078426 is an abundant number, since it is smaller than the sum of its proper divisors (93179297574).

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

67500078426 is a wasteful number, since it uses less digits than its factorization.

67500078426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3764 (or 3761 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 67500078426 in words is "sixty-seven billion, five hundred million, seventy-eight thousand, four hundred twenty-six".