4312047351621 has 16 divisors (see below), whose sum is σ = 6087943238400. Its totient is φ = 2705444126208.

The previous prime is 4312047351583. The next prime is 4312047351637. The reversal of 4312047351621 is 1261537402134.

4312047351621 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4312047351621 - 2²³ = 4312038963013 is a prime.

It is a super-2 number, since 2×4312047351621² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4312047351621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4312047351121) 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, 1502701 + ... + 3298818.

It is an arithmetic number, because the mean of its divisors is an integer number (380496452400).

Almost surely, 2^{4312047351621} is an apocalyptic number.

It is an amenable number.

4312047351621 is a deficient number, since it is larger than the sum of its proper divisors (1775895886779).

4312047351621 is a wasteful number, since it uses less digits than its factorization.

4312047351621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4819148.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 4312047351621 in words is "four trillion, three hundred twelve billion, forty-seven million, three hundred fifty-one thousand, six hundred twenty-one".