428782844111554 has 16 divisors (see below), whose sum is σ = 645986541957120. Its totient is φ = 213454007385840.

The previous prime is 428782844111533. The next prime is 428782844111593. The reversal of 428782844111554 is 455111448287824.

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, 81299007 + ... + 86412349.

It is an arithmetic number, because the mean of its divisors is an integer number (40374158872320).

Almost surely, 2^{428782844111554} is an apocalyptic number.

428782844111554 is a deficient number, since it is larger than the sum of its proper divisors (217203697845566).

428782844111554 is a wasteful number, since it uses less digits than its factorization.

428782844111554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5296665.

The product of its digits is 91750400, while the sum is 64.

The spelling of 428782844111554 in words is "four hundred twenty-eight trillion, seven hundred eighty-two billion, eight hundred forty-four million, one hundred eleven thousand, five hundred fifty-four".