67711938990 has 32 divisors (see below), whose sum is σ = 162531709056. Its totient is φ = 18053955360.

The previous prime is 67711938953. The next prime is 67711939067. The reversal of 67711938990 is 9983911776.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59829 + ... + 372831.

It is an arithmetic number, because the mean of its divisors is an integer number (5079115908).

Almost surely, 2^67711938990 is an apocalyptic number.

67711938990 is an abundant number, since it is smaller than the sum of its proper divisors (94819770066).

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

67711938990 is a wasteful number, since it uses less digits than its factorization.

67711938990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320224.

The product of its (nonzero) digits is 5143824, while the sum is 60.

The spelling of 67711938990 in words is "sixty-seven billion, seven hundred eleven million, nine hundred thirty-eight thousand, nine hundred ninety".