3421400646511 has 4 divisors (see below), whose sum is σ = 3468269148592. Its totient is φ = 3374532144432.

The previous prime is 3421400646509. The next prime is 3421400646563. The reversal of 3421400646511 is 1156460041243.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3421400646511 - 2¹ = 3421400646509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3421400646311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23434250931 + ... + 23434251076.

It is an arithmetic number, because the mean of its divisors is an integer number (867067287148).

Almost surely, 2^{3421400646511} is an apocalyptic number.

3421400646511 is a deficient number, since it is larger than the sum of its proper divisors (46868502081).

3421400646511 is an equidigital number, since it uses as much as digits as its factorization.

3421400646511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46868502080.

The product of its (nonzero) digits is 69120, while the sum is 37.

Adding to 3421400646511 its reverse (1156460041243), we get a palindrome (4577860687754).

The spelling of 3421400646511 in words is "three trillion, four hundred twenty-one billion, four hundred million, six hundred forty-six thousand, five hundred eleven".