3521726430672 has 80 divisors (see below), whose sum is σ = 9508737651840. Its totient is φ = 1121049194496.

The previous prime is 3521726430667. The next prime is 3521726430697. The reversal of 3521726430672 is 2760346271253.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1903897 + ... + 3266232.

It is an arithmetic number, because the mean of its divisors is an integer number (118859220648).

Almost surely, 2^{3521726430672} is an apocalyptic number.

It is an amenable number.

3521726430672 is an abundant number, since it is smaller than the sum of its proper divisors (5987011221168).

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

3521726430672 is a wasteful number, since it uses less digits than its factorization.

3521726430672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5170780 (or 5170774 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 48.

The spelling of 3521726430672 in words is "three trillion, five hundred twenty-one billion, seven hundred twenty-six million, four hundred thirty thousand, six hundred seventy-two".