428765683654 has 64 divisors (see below), whose sum is σ = 809718239232. Its totient is φ = 165413296800.

The previous prime is 428765683607. The next prime is 428765683657. The reversal of 428765683654 is 456386567824.

It is a super-2 number, since 2×428765683654² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428765683657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45985437 + ... + 45994759.

It is an arithmetic number, because the mean of its divisors is an integer number (12651847488).

Almost surely, 2^428765683654 is an apocalyptic number.

428765683654 is a deficient number, since it is larger than the sum of its proper divisors (380952555578).

428765683654 is a wasteful number, since it uses less digits than its factorization.

428765683654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12241.

The product of its digits is 232243200, while the sum is 64.

The spelling of 428765683654 in words is "four hundred twenty-eight billion, seven hundred sixty-five million, six hundred eighty-three thousand, six hundred fifty-four".