3721123553346 has 12 divisors (see below), whose sum is σ = 8062434365622. Its totient is φ = 1240374517776.

The previous prime is 3721123553321. The next prime is 3721123553401. The reversal of 3721123553346 is 6433553211273.

3721123553346 is a `hidden beast` number, since 3 + 7 + 21 + 1 + 235 + 53 + 346 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3206660211225 + 514463342121 = 1790715^2 + 717261^2 .

It is a super-2 number, since 2×3721123553346² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 103364543131 + ... + 103364543166.

Almost surely, 2^{3721123553346} is an apocalyptic number.

3721123553346 is an abundant number, since it is smaller than the sum of its proper divisors (4341310812276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3721123553346 is a wasteful number, since it uses less digits than its factorization.

3721123553346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206729086305 (or 206729086302 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 45.

The spelling of 3721123553346 in words is "three trillion, seven hundred twenty-one billion, one hundred twenty-three million, five hundred fifty-three thousand, three hundred forty-six".