67540396786011 has 12 divisors (see below), whose sum is σ = 97558618778088. Its totient is φ = 45026807560704.

The previous prime is 67540396786007. The next prime is 67540396786081. The reversal of 67540396786011 is 11068769304576.

67540396786011 is a `hidden beast` number, since 6 + 7 + 5 + 403 + 96 + 78 + 60 + 11 = 666.

It is not a de Polignac number, because 67540396786011 - 2² = 67540396786007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67540396786011.

It is not an unprimeable number, because it can be changed into a prime (67540396786081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6779110 + ... + 13455003.

It is an arithmetic number, because the mean of its divisors is an integer number (8129884898174).

Almost surely, 2^{67540396786011} is an apocalyptic number.

67540396786011 is a deficient number, since it is larger than the sum of its proper divisors (30018221992077).

67540396786011 is a wasteful number, since it uses less digits than its factorization.

67540396786011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20605002 (or 20604999 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 63.

The spelling of 67540396786011 in words is "sixty-seven trillion, five hundred forty billion, three hundred ninety-six million, seven hundred eighty-six thousand, eleven".