428097122915 has 16 divisors (see below), whose sum is σ = 640477774080. Its totient is φ = 266865738720.

The previous prime is 428097122911. The next prime is 428097122927. The reversal of 428097122915 is 519221790824.

It is not a de Polignac number, because 428097122915 - 2² = 428097122911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428097122911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 555969905 + ... + 555970674.

It is an arithmetic number, because the mean of its divisors is an integer number (40029860880).

Almost surely, 2^428097122915 is an apocalyptic number.

428097122915 is a deficient number, since it is larger than the sum of its proper divisors (212380651165).

428097122915 is a wasteful number, since it uses less digits than its factorization.

428097122915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111940602.

The product of its (nonzero) digits is 725760, while the sum is 50.

The spelling of 428097122915 in words is "four hundred twenty-eight billion, ninety-seven million, one hundred twenty-two thousand, nine hundred fifteen".