3420147121772 has 6 divisors (see below), whose sum is σ = 5985257463108. Its totient is φ = 1710073560884.

The previous prime is 3420147121681. The next prime is 3420147121813. The reversal of 3420147121772 is 2771217410243.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427518390218 + ... + 427518390225.

It is an arithmetic number, because the mean of its divisors is an integer number (997542910518).

Almost surely, 2^{3420147121772} is an apocalyptic number.

It is an amenable number.

3420147121772 is a deficient number, since it is larger than the sum of its proper divisors (2565110341336).

3420147121772 is a wasteful number, since it uses less digits than its factorization.

3420147121772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855036780447 (or 855036780445 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 41.

The spelling of 3420147121772 in words is "three trillion, four hundred twenty billion, one hundred forty-seven million, one hundred twenty-one thousand, seven hundred seventy-two".