627551231690 has 16 divisors (see below), whose sum is σ = 1129752728928. Its totient is φ = 250984823376.

The previous prime is 627551231677. The next prime is 627551231707. The reversal of 627551231690 is 96132155726.

It is a super-2 number, since 2×627551231690² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4384712 + ... + 4525571.

It is an arithmetic number, because the mean of its divisors is an integer number (70609545558).

Almost surely, 2^627551231690 is an apocalyptic number.

627551231690 is a deficient number, since it is larger than the sum of its proper divisors (502201497238).

627551231690 is a wasteful number, since it uses less digits than its factorization.

627551231690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8917333.

The product of its (nonzero) digits is 680400, while the sum is 47.

The spelling of 627551231690 in words is "six hundred twenty-seven billion, five hundred fifty-one million, two hundred thirty-one thousand, six hundred ninety".