67394113542 has 96 divisors (see below), whose sum is σ = 169042857984. Its totient is φ = 19007539200.

The previous prime is 67394113541. The next prime is 67394113601. The reversal of 67394113542 is 24531149376.

67394113542 is a `hidden beast` number, since 6 + 7 + 3 + 94 + 1 + 13 + 542 = 666.

It is a super-2 number, since 2×67394113542² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67394113541) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3141958 + ... + 3163334.

It is an arithmetic number, because the mean of its divisors is an integer number (1760863104).

Almost surely, 2^67394113542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67394113542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84521428992).

67394113542 is an abundant number, since it is smaller than the sum of its proper divisors (101648744442).

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

67394113542 is a wasteful number, since it uses less digits than its factorization.

67394113542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21714 (or 21711 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The spelling of 67394113542 in words is "sixty-seven billion, three hundred ninety-four million, one hundred thirteen thousand, five hundred forty-two".