3213649783572 has 48 divisors (see below), whose sum is σ = 7748425430592. Its totient is φ = 1035870508800.

The previous prime is 3213649783549. The next prime is 3213649783577. The reversal of 3213649783572 is 2753879463123.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213649783577) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22129929 + ... + 22274672.

It is an arithmetic number, because the mean of its divisors is an integer number (161425529804).

Almost surely, 2^{3213649783572} is an apocalyptic number.

It is an amenable number.

3213649783572 is an abundant number, since it is smaller than the sum of its proper divisors (4534775647020).

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

3213649783572 is a wasteful number, since it uses less digits than its factorization.

3213649783572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44404808 (or 44404806 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 60.

The spelling of 3213649783572 in words is "three trillion, two hundred thirteen billion, six hundred forty-nine million, seven hundred eighty-three thousand, five hundred seventy-two".