3401278586643 has 64 divisors (see below), whose sum is σ = 5602176000000. Its totient is φ = 1828474002432.

The previous prime is 3401278586621. The next prime is 3401278586647. The reversal of 3401278586643 is 3466858721043.

It is a happy number.

3401278586643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3401278586643 - 2⁶ = 3401278586579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3401278586647) 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, 41925183 + ... + 42006231.

It is an arithmetic number, because the mean of its divisors is an integer number (87534000000).

Almost surely, 2^{3401278586643} is an apocalyptic number.

3401278586643 is a deficient number, since it is larger than the sum of its proper divisors (2200897413357).

3401278586643 is a wasteful number, since it uses less digits than its factorization.

3401278586643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83489 (or 83475 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 57.

The spelling of 3401278586643 in words is "three trillion, four hundred one billion, two hundred seventy-eight million, five hundred eighty-six thousand, six hundred forty-three".