4001261240678 has 16 divisors (see below), whose sum is σ = 6638267091120. Its totient is φ = 1796824174176.

The previous prime is 4001261240677. The next prime is 4001261240857. The reversal of 4001261240678 is 8760421621004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4001261240677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2079656648 + ... + 2079658571.

It is an arithmetic number, because the mean of its divisors is an integer number (414891693195).

Almost surely, 2^{4001261240678} is an apocalyptic number.

4001261240678 is a deficient number, since it is larger than the sum of its proper divisors (2637005850442).

4001261240678 is a wasteful number, since it uses less digits than its factorization.

4001261240678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4159315271.

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 4001261240678 in words is "four trillion, one billion, two hundred sixty-one million, two hundred forty thousand, six hundred seventy-eight".