3427721213272 has 16 divisors (see below), whose sum is σ = 6485940370800. Its totient is φ = 1698137114400.

The previous prime is 3427721213263. The next prime is 3427721213281. The reversal of 3427721213272 is 2723121277243.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3427721213263) and next prime (3427721213281).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1965435604 + ... + 1965437347.

It is an arithmetic number, because the mean of its divisors is an integer number (405371273175).

Almost surely, 2^{3427721213272} is an apocalyptic number.

It is an amenable number.

3427721213272 is a deficient number, since it is larger than the sum of its proper divisors (3058219157528).

3427721213272 is a wasteful number, since it uses less digits than its factorization.

3427721213272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3930873066 (or 3930873062 counting only the distinct ones).

The product of its digits is 395136, while the sum is 43.

The spelling of 3427721213272 in words is "three trillion, four hundred twenty-seven billion, seven hundred twenty-one million, two hundred thirteen thousand, two hundred seventy-two".