1626815604630 has 128 divisors (see below), whose sum is σ = 4093086007296. Its totient is φ = 413334230400.

The previous prime is 1626815604611. The next prime is 1626815604641. The reversal of 1626815604630 is 364065186261.

It is a super-2 number, since 2×1626815604630² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1626815604630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15419839 + ... + 15524981.

It is an arithmetic number, because the mean of its divisors is an integer number (31977234432).

Almost surely, 2^{1626815604630} is an apocalyptic number.

1626815604630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1626815604630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2046543003648).

1626815604630 is an abundant number, since it is smaller than the sum of its proper divisors (2466270402666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1626815604630 is a wasteful number, since it uses less digits than its factorization.

1626815604630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105442.

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 1626815604630 in words is "one trillion, six hundred twenty-six billion, eight hundred fifteen million, six hundred four thousand, six hundred thirty".