628400492019 has 16 divisors (see below), whose sum is σ = 930977034240. Its totient is φ = 418927657320.

The previous prime is 628400491981. The next prime is 628400492047. The reversal of 628400492019 is 910294004826.

628400492019 is a `hidden beast` number, since 628 + 4 + 0 + 0 + 4 + 9 + 2 + 0 + 19 = 666.

It is not a de Polignac number, because 628400492019 - 2¹¹ = 628400489971 is a prime.

It is a super-2 number, since 2×628400492019² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (628400497019) 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, 2566474 + ... + 2800640.

It is an arithmetic number, because the mean of its divisors is an integer number (58186064640).

Almost surely, 2^628400492019 is an apocalyptic number.

628400492019 is a deficient number, since it is larger than the sum of its proper divisors (302576542221).

628400492019 is a wasteful number, since it uses less digits than its factorization.

628400492019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333567 (or 333561 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 628400492019 in words is "six hundred twenty-eight billion, four hundred million, four hundred ninety-two thousand, nineteen".