67901551344 has 160 divisors (see below), whose sum is σ = 219480238080. Its totient is φ = 19912435200.

The previous prime is 67901551307. The next prime is 67901551363. The reversal of 67901551344 is 44315510976.

67901551344 is a `hidden beast` number, since 6 + 7 + 90 + 1 + 5 + 513 + 44 = 666.

It is a super-2 number, since 2×67901551344² (a number of 22 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 67901551344.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83157 + ... + 377780.

It is an arithmetic number, because the mean of its divisors is an integer number (1371751488).

Almost surely, 2^67901551344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67901551344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109740119040).

67901551344 is an abundant number, since it is smaller than the sum of its proper divisors (151578686736).

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

67901551344 is a wasteful number, since it uses less digits than its factorization.

67901551344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460996 (or 460984 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 67901551344 in words is "sixty-seven billion, nine hundred one million, five hundred fifty-one thousand, three hundred forty-four".