67902436938648 has 256 divisors, whose sum is σ = 192476124288000. Its totient is φ = 19814970599424.

The previous prime is 67902436938643. The next prime is 67902436938697. The reversal of 67902436938648 is 84683963420976.

It is a super-2 number, since 2×67902436938648² (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 67902436938648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67902436938643) 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, 681653661 + ... + 681753267.

It is an arithmetic number, because the mean of its divisors is an integer number (751859860500).

Almost surely, 2^{67902436938648} 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 67902436938648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96238062144000).

67902436938648 is an abundant number, since it is smaller than the sum of its proper divisors (124573687349352).

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

67902436938648 is a wasteful number, since it uses less digits than its factorization.

67902436938648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100994 (or 100990 counting only the distinct ones).

The product of its (nonzero) digits is 2257403904, while the sum is 75.

The spelling of 67902436938648 in words is "sixty-seven trillion, nine hundred two billion, four hundred thirty-six million, nine hundred thirty-eight thousand, six hundred forty-eight".