428615904718 has 4 divisors (see below), whose sum is σ = 642923857080. Its totient is φ = 214307952358.

The previous prime is 428615904697. The next prime is 428615904781. The reversal of 428615904718 is 817409516824.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107153976178 + ... + 107153976181.

It is an arithmetic number, because the mean of its divisors is an integer number (160730964270).

Almost surely, 2^428615904718 is an apocalyptic number.

428615904718 is a deficient number, since it is larger than the sum of its proper divisors (214307952362).

428615904718 is a wasteful number, since it uses less digits than its factorization.

428615904718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214307952361.

The product of its (nonzero) digits is 3870720, while the sum is 55.

The spelling of 428615904718 in words is "four hundred twenty-eight billion, six hundred fifteen million, nine hundred four thousand, seven hundred eighteen".