20428266594 has 64 divisors (see below), whose sum is σ = 44714880000. Its totient is φ = 6197083200.

The previous prime is 20428266583. The next prime is 20428266601. The reversal of 20428266594 is 49566282402.

20428266594 = T₁₄₂₂₉ + T₁₄₂₃₀ + ... + T₁₄₄₂₇.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 642369 + ... + 673419.

It is an arithmetic number, because the mean of its divisors is an integer number (698670000).

Almost surely, 2^20428266594 is an apocalyptic number.

20428266594 is an abundant number, since it is smaller than the sum of its proper divisors (24286613406).

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

20428266594 is a wasteful number, since it uses less digits than its factorization.

20428266594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31303.

The product of its (nonzero) digits is 1658880, while the sum is 48.

The spelling of 20428266594 in words is "twenty billion, four hundred twenty-eight million, two hundred sixty-six thousand, five hundred ninety-four".