67484735970988 has 72 divisors (see below), whose sum is σ = 139588282743840. Its totient is φ = 28458653207040.

The previous prime is 67484735970941. The next prime is 67484735971039. The reversal of 67484735970988 is 88907953748476.

It is a super-2 number, since 2×67484735970988² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2319556 + ... + 11846932.

It is an arithmetic number, because the mean of its divisors is an integer number (1938726149220).

Almost surely, 2^{67484735970988} 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 67484735970988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69794141371920).

67484735970988 is an abundant number, since it is smaller than the sum of its proper divisors (72103546772852).

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

67484735970988 is a wasteful number, since it uses less digits than its factorization.

67484735970988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9527975 (or 9527966 counting only the distinct ones).

The product of its (nonzero) digits is 20483850240, while the sum is 85.

The spelling of 67484735970988 in words is "sixty-seven trillion, four hundred eighty-four billion, seven hundred thirty-five million, nine hundred seventy thousand, nine hundred eighty-eight".