628338192031 has 8 divisors (see below), whose sum is σ = 685465592400. Its totient is φ = 571211749440.

The previous prime is 628338192017. The next prime is 628338192043. The reversal of 628338192031 is 130291833826.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 628338192031 - 2⁷ = 628338191903 is a prime.

It is a super-2 number, since 2×628338192031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628338192731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2347705 + ... + 2601613.

It is an arithmetic number, because the mean of its divisors is an integer number (85683199050).

Almost surely, 2^628338192031 is an apocalyptic number.

628338192031 is a deficient number, since it is larger than the sum of its proper divisors (57127400369).

628338192031 is a wasteful number, since it uses less digits than its factorization.

628338192031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478889.

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 628338192031 in words is "six hundred twenty-eight billion, three hundred thirty-eight million, one hundred ninety-two thousand, thirty-one".