6721012156363 has 8 divisors (see below), whose sum is σ = 6902703223920. Its totient is φ = 6539323304160.

The previous prime is 6721012156249. The next prime is 6721012156373. The reversal of 6721012156363 is 3636512101276.

6721012156363 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-6721012156363 is a prime.

It is a super-2 number, since 2×6721012156363² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6721012156373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6952593 + ... + 7860061.

It is an arithmetic number, because the mean of its divisors is an integer number (862837902990).

Almost surely, 2^{6721012156363} is an apocalyptic number.

6721012156363 is a deficient number, since it is larger than the sum of its proper divisors (181691067557).

6721012156363 is a wasteful number, since it uses less digits than its factorization.

6721012156363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107677.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 6721012156363 in words is "six trillion, seven hundred twenty-one billion, twelve million, one hundred fifty-six thousand, three hundred sixty-three".