20830907628254 has 16 divisors (see below), whose sum is σ = 31353337975680. Its totient is φ = 10379795726880.

The previous prime is 20830907628143. The next prime is 20830907628319. The reversal of 20830907628254 is 45282670903802.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20830907628254.

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, 101850707 + ... + 102055025.

It is an arithmetic number, because the mean of its divisors is an integer number (1959583623480).

Almost surely, 2^{20830907628254} is an apocalyptic number.

20830907628254 is a deficient number, since it is larger than the sum of its proper divisors (10522430347426).

20830907628254 is a wasteful number, since it uses less digits than its factorization.

20830907628254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378595.

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 20830907628254 in words is "twenty trillion, eight hundred thirty billion, nine hundred seven million, six hundred twenty-eight thousand, two hundred fifty-four".