20354256434612 has 24 divisors (see below), whose sum is σ = 38192647973760. Its totient is φ = 9457227112320.

The previous prime is 20354256434563. The next prime is 20354256434651. The reversal of 20354256434612 is 21643465245302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1894471214 + ... + 1894481957.

It is an arithmetic number, because the mean of its divisors is an integer number (1591360332240).

Almost surely, 2^{20354256434612} is an apocalyptic number.

It is an amenable number.

20354256434612 is a deficient number, since it is larger than the sum of its proper divisors (17838391539148).

20354256434612 is a wasteful number, since it uses less digits than its factorization.

20354256434612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3788953271 (or 3788953269 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 47.

The spelling of 20354256434612 in words is "twenty trillion, three hundred fifty-four billion, two hundred fifty-six million, four hundred thirty-four thousand, six hundred twelve".