1626772013646 has 16 divisors (see below), whose sum is σ = 3503816644944. Its totient is φ = 500545234944.

The previous prime is 1626772013621. The next prime is 1626772013653. The reversal of 1626772013646 is 6463102776261.

It is a super-2 number, since 2×1626772013646² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10428025651 + ... + 10428025806.

It is an arithmetic number, because the mean of its divisors is an integer number (218988540309).

Almost surely, 2^{1626772013646} is an apocalyptic number.

1626772013646 is an abundant number, since it is smaller than the sum of its proper divisors (1877044631298).

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

1626772013646 is a wasteful number, since it uses less digits than its factorization.

1626772013646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20856051475.

The product of its (nonzero) digits is 3048192, while the sum is 51.

The spelling of 1626772013646 in words is "one trillion, six hundred twenty-six billion, seven hundred seventy-two million, thirteen thousand, six hundred forty-six".